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No exploitation reportedFix available

CVE-2024-11233

No exploitation reported by the sources we read.

  • Published2024-11-24
  • Fixed in8.3.14 · 8.2.26 · 8.1.31
  • WeaknessCWE-122 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, due to an error in convert.quoted-printable-decode filter certain data can lead to buffer overread by one byte, which can in certain circumstances lead to crashes or disclose content of other memory areas.

Timeline

dates in UTC
  1. 2024-11-2402:15CVE publishedNVD

Versions per branch

NVD · OSV · CISA-ADP
PHP
BranchAffectedFixed in
8.3≥ 8.3.0, < 8.3.148.3.14
8.2≥ 8.2.0, < 8.2.268.2.26
8.1≥ 8.1.0, < 8.1.318.1.31
8.1< 8.1.318.1.31
Php group php
BranchAffectedFixed in
8.3≥ 8.3.0, < 8.3.148.3.14
8.2≥ 8.2.0, < 8.2.268.2.26
8.1≥ 8.1.0, < 8.1.318.1.31

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As php, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • PHP Group PHPother versions: affected
    Affected
    • ≥ 8.1.*, < 8.1.31fixed in 8.1.31semver
    • ≥ 8.2.*, < 8.2.26fixed in 8.2.26semver
    • ≥ 8.3.*, < 8.3.14fixed in 8.3.14semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-11-24

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • apcu-panelRed Hat:enterprise_linux:9::appstreamall versions · fixed in 0:5.1.23-1.module+el9.4.0+20748+b46899d2
  • libzipRocky Linux:8all versions · fixed in 0:1.7.3-1.module+el8.10.0+1605+02e07af7
  • libzipRocky Linux:8all versions · fixed in 0:1.7.3-1.module+el8.10.0+1911+f499711e
  • libzipRocky Linux:8all versions · fixed in 0:1.6.1-1.module+el8.10.0+1912+72767185
  • libzipRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:1.7.3-1.module+el8.10.0+20770+a5eca186and 5 other packages
  • libzipAlmaLinux:8all versions · fixed in 1.6.1-1.module_el8.10.0+3935+28808425and 2 other packages
  • libzipAlmaLinux:8all versions · fixed in 1.6.1-1.module_el8.6.0+2750+78feabcband 1 other package
  • libzipAlmaLinux:8all versions · fixed in 1.6.1-1.module_el8.6.0+3239+bedf0508and 2 other packages

113 more package ranges on OSV.dev

Vendor advisories

  • CVE-2024-11233 Red Hat Product Security1,303 products fixed

    php: Single byte overread with convert.quoted-printable-decode filter

  • RHSA-2026:2470 Red Hat Product Security301 products fixed

    Red Hat Security Advisory: php:7.4 security update

  • RHSA-2025:15687 Red Hat Product Security285 products fixed

    Red Hat Security Advisory: php:8.2 security update

  • RHSA-2025:7432 Red Hat Product Security258 products fixed

    Red Hat Security Advisory: php:8.2 security update

  • RHSA-2025:7315 Red Hat Product Security201 products fixed

    Red Hat Security Advisory: php security update

  • RHSA-2025:4263 Red Hat Product Security258 products fixed

    Red Hat Security Advisory: php:8.1 security update

Full record on NVD

Fix

  1. Update PHP to 8.3.14 · 8.2.26 · 8.1.31
  2. Vendor fix Red Hat Product Security RHSA-2026:2470 · 301 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2024-11-24
  • CNACVSS 3.14.8known since 2026-10-23
  • NVDCVSS 3.18.2read 2026-10-23
  • CNAweakness (CWE)CWE-122known since 2026-10-23
  • NVDweakness (CWE)CWE-787read 2026-10-23
  • FIRST EPSSEPSS score1.6 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Published
2024-11-24
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-r977-prxv-hc43

Frequently asked questions

What is CVE-2024-11233?

In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, due to an error in convert.quoted-printable-decode filter certain data can lead to buffer overread by one byte, which can in certain circumstances lead to crashes or disclose content of other memory areas.

Is CVE-2024-11233 actively exploited?

Active exploitation of CVE-2024-11233 has not been confirmed. Its EPSS score was 1.6% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-11233?

CVE-2024-11233 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.

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