Is CVE-2024-23837 in the CISA KEV catalog?

No. CVE-2024-23837 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-23837?

CVE-2024-23837 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2024-23837?

CVE-2024-23837 has an EPSS score of 1.19% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-23837?

Upgrade libhtp on debian 11 to 1:0.5.36-1+deb11u1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2024-23837

HIGH

7.5

CVSS v3

NVD

Description

LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.

CWE-770Allocation of Resources Without Limits or Throttling

How to fix

Remediation Available

libhtpDebian

Fixed in:1:0.5.36-1+deb11u1CVE-2024-23837

Fixed in:1:0.5.42-1+deb12u1CVE-2024-23837

Fixed in:1:0.5.46-1CVE-2024-23837

libhtpUbuntu

Fixed in:0.5.15-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.26-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.32-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.39-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.46-1ubuntu2+esm1USN-7814-1

libhtp-devUbuntu

Fixed in:0.5.15-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.26-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.32-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.39-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.46-1ubuntu2+esm1USN-7814-1

libhtp1Ubuntu

Fixed in:0.5.15-1ubuntu0.1~esm1USN-7814-1

libhtp2Ubuntu

Fixed in:1:0.5.26-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.32-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.39-1ubuntu0.1~esm1USN-7814-1

Fixed in:1:0.5.46-1ubuntu2+esm1USN-7814-1

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.19%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Patch1

github.com

Exploit1

redmine.openinfosecfoundation.org

Vendor Advisory1

github.com

Mailing List2

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-50387	High	7.5	100%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2019-11479	High	7.5	92%	-	Fix
CVE-2024-27316	High	7.5	91%	-	Fix
CVE-2022-30522	High	7.5	90%	-	Fix
CVE-2019-9515	High	7.5	88%	-	Fix

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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 2025-11-03.