CVE-2024-1551

Q: How do I fix CVE-2024-1551?

Published advisories record a fix for 20 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Q: Is CVE-2024-1551 being actively exploited?

Not that we know of. CVE-2024-1551 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.74% is the estimated probability that it will be exploited in the next 30 days. That is higher than 51% of all scored CVEs.

Q: How severe is CVE-2024-1551?

CVE-2024-1551 has a CVSS v3 base score of 6.1, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2024-1551 affect?

Published advisories record a fix for firefox (Debian), firefox (Rocky), firefox (Red Hat / RHEL), firefox-debuginfo (Red Hat / RHEL), and 16 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

6.1

CVSS v3

NVD

Description

Set-Cookie response headers were being incorrectly honored in multipart HTTP responses. If an attacker could control the Content-Type response header, as well as control part of the response body, they could inject Set-Cookie response headers that would have been honored by the browser. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

CWE-565

How to fix

Remediation Available

firefoxDebian

Fixed in:123.0-1CVE-2024-1551

firefoxRocky

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9.ppc64RHSA-2024:0976

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

firefoxRed Hat / RHEL

Fixed in:0:115.8.0-1.el7_9.ppc64RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

firefox-debuginfoRed Hat / RHEL

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9.ppc64RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

firefox-debuginfoRocky

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9.ppc64RHSA-2024:0976

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0976

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

firefox-debugsourceRocky

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

firefox-debugsourceRed Hat / RHEL

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0969

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0955

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0972

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0970

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0971

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0968

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

firefox-x11Red Hat / RHEL

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

firefox-x11Rocky

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0952

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0983

thunderbirdRocky

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0957

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

thunderbirdRed Hat / RHEL

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0957

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

thunderbird-debuginfoRed Hat / RHEL

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0957

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

thunderbird-debuginfoRocky

Fixed in:0:115.8.0-1.el7_9RHSA-2024:0957

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

thunderbird-debugsourceRocky

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

thunderbird-debugsourceRed Hat / RHEL

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_8RHSA-2024:0961

Fixed in:0:115.8.0-1.el8_4RHSA-2024:0959

Fixed in:0:115.8.0-1.el8_9RHSA-2024:0964

Fixed in:0:115.8.0-1.el8_2RHSA-2024:0958

Fixed in:0:115.8.0-1.el8_6RHSA-2024:0960

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_0RHSA-2024:0962

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

Fixed in:0:115.8.0-1.el9_3RHSA-2024:0963

Fixed in:0:115.8.0-1.el9_2RHSA-2024:0984

firefoxUbuntu

Fixed in:123.0+build3-0ubuntu0.20.04.1USN-6649-1

thunderbirdUbuntu

Fixed in:1:115.8.1+build1-0ubuntu0.20.04.1USN-6669-1

Fixed in:1:115.8.1+build1-0ubuntu0.22.04.1USN-6669-1

Fixed in:1:115.8.1+build1-0ubuntu0.23.10.1USN-6669-1

DeveloperEditionWindows application

Affected:123.0Fixed in:123.0Mozilla

Affected:115.8.0Fixed in:115.8.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:123.0Fixed in:123.0Mozilla

Affected:115.8.0Fixed in:115.8.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:115.8.0Fixed in:115.8.0Mozilla

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.74%probability of exploitation in 30 days

51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Exploit1

bugzilla.mozilla.org

Vendor Advisory3

Third-Party Advisory2

Related Vulnerabilities

Other CWE-565 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-0257	Critical	9.1	94%	KEV + Ransom	Fix
CVE-2023-35885	Critical	9.8	75%	-	Fix
CVE-2025-64447	High	8.1	8.4%	-	-
CVE-2008-5784	Critical	9.8	7.1%	-	-
CVE-2020-7070	Medium	4.3	5.0%	-	Fix
CVE-2025-65212	Critical	9.8	4.7%	-	Fix

Common questions

How do I fix CVE-2024-1551?

Published advisories record a fix for 20 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2024-1551 being actively exploited?

Not that we know of. CVE-2024-1551 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.74% is the estimated probability that it will be exploited in the next 30 days. That is higher than 51% of all scored CVEs.

How severe is CVE-2024-1551?

CVE-2024-1551 has a CVSS v3 base score of 6.1, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-1551 affect?

Published advisories record a fix for firefox (Debian), firefox (Rocky), firefox (Red Hat / RHEL), firefox-debuginfo (Red Hat / RHEL), and 16 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2024-1551

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-02.