Is CVE-2023-32762 in the CISA KEV catalog?

No. CVE-2023-32762 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-32762?

CVE-2023-32762 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2023-32762?

CVE-2023-32762 has an EPSS score of 0.88% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-32762?

Upgrade qt6-base on debian 12 to 6.4.2+dfsg-9 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-32762

MEDIUM

5.3

CVSS v3

NVD

Description

An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.

How to fix

Remediation Available

qt6-baseDebian

Fixed in:6.4.2+dfsg-9CVE-2023-32762

libqt5core5aUbuntu

Fixed in:5.5.1+dfsg-16ubuntu7.7+esm1USN-7780-1

Fixed in:5.9.5+dfsg-0ubuntu2.6+esm1USN-7780-1

Fixed in:5.12.8+dfsg-0ubuntu2.1+esm1USN-7780-1

Fixed in:5.15.3+dfsg-2ubuntu0.2+esm1USN-7780-1

libqt5gui5Ubuntu

Fixed in:5.5.1+dfsg-16ubuntu7.7+esm1USN-7780-1

Fixed in:5.9.5+dfsg-0ubuntu2.6+esm1USN-7780-1

Fixed in:5.12.8+dfsg-0ubuntu2.1+esm1USN-7780-1

Fixed in:5.15.3+dfsg-2ubuntu0.2+esm1USN-7780-1

qtbase-opensource-srcUbuntu

Fixed in:5.5.1+dfsg-16ubuntu7.7+esm1USN-7780-1

Fixed in:5.9.5+dfsg-0ubuntu2.6+esm1USN-7780-1

Fixed in:5.12.8+dfsg-0ubuntu2.1+esm1USN-7780-1

Fixed in:5.15.3+dfsg-2ubuntu0.2+esm1USN-7780-1

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

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.88%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Patch3

Third-Party Advisory1

lists.debian.org

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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 2025-03-05.