5.6

CVE-2026-14355: debian debian_linux Heap-based Buffer Overflow

CVSS: 5.6v3.1MediumAnalyzed
AliasesMGASA-2026-0274MGASA-2026-0285SUSE-SU-2026:3165-1
Published 03-07-2026Last modified 06-07-2026

Vulnerability summary

CVE-2026-14355 is a medium (CVSS 5.6) Heap-based Buffer Overflow vulnerability in debian debian_linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.6/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 6

Timeline

  1. 03-07-2026
    PublishedVulnerability first disclosed.
  2. 06-07-2026
    Last modifiedVulnerability information updated.

Description

In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The output buffer for the AES key-wrap-with-padding operation is sized from the plaintext length without accounting for RFC 5649 expansion. This may cause OpenSSL to write beyond allocated memory, corrupting heap metadata and triggering application abort.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.28% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat135 products
  • apcu-panel< 0:5.1.23-1.module+el9.7.0+24111+199d2cc4 | < 0:5.1.23-1.module+el8.10.0+20770+a5eca186 | < 0:5.1.18-1.module+el8.10.0+22485+a3539972 | < 0:5.1.23-1.module+el9.8.0+24343+756b4fcd
  • libzip< 0:1.7.3-1.module+el8.10.0+20770+a5eca186 | < 0:1.6.1-1.module+el8.10.0+22485+a3539972
  • libzip-debuginfo< 0:1.7.3-1.module+el8.10.0+20770+a5eca186 | < 0:1.6.1-1.module+el8.10.0+22485+a3539972
  • libzip-debugsource< 0:1.7.3-1.module+el8.10.0+20770+a5eca186 | < 0:1.6.1-1.module+el8.10.0+22485+a3539972
  • libzip-devel< 0:1.7.3-1.module+el8.10.0+20770+a5eca186 | < 0:1.6.1-1.module+el8.10.0+22485+a3539972
Suse8 products
  • apache2-mod_php7&distro=SUSE Linux Enterprise Module for Legacy 15 SP7< 7.4.33-150400.4.63.1
  • apache2-mod_php7&distro=SUSE Linux Enterprise Module for Package Hub 15 SP7< 7.4.33-150400.4.63.1
  • php7-embed&distro=SUSE Linux Enterprise Module for Package Hub 15 SP7< 7.4.33-150400.4.63.1
  • php7-fastcgi&distro=SUSE Linux Enterprise Module for Package Hub 15 SP7< 7.4.33-150400.4.63.1
  • php7-fpm&distro=SUSE Linux Enterprise Module for Package Hub 15 SP7< 7.4.33-150400.4.63.1
Ubuntu7 products
  • php5All versions (No fix recorded)
  • php7.2All versions (No fix recorded)
  • php7.4All versions (No fix recorded)
  • php8.1< 8.1.2-1ubuntu2.25
  • php8.3< 8.3.6-0ubuntu0.24.04.10
Debian3 products
  • php8.2< 8.2.32-1~deb12u1
  • php8.4< 8.4.23-1~deb13u1 | < 8.4.23-1
  • debian_linux12.0
Mageia3 products
  • php8.4< 8.4.23-1.mga10
  • php8.5< 8.5.8-1.mga10
  • php< 8.2.32-1.mga9
Php1 product
  • php≥ 8.2.0, < 8.2.32 | ≥ 8.3.0, < 8.3.32 | ≥ 8.4.0, < 8.4.23 | ≥ 8.5.0, < 8.5.8

6 vendors · 157 products

References

42 links
Show all 42 references