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🛡️ CVE-2026-5435 on Debian 11 (Root.io) — glibc

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-5435 in glibc - Patched by Root

Root has patched CVE-2026-5435 in the glibc package for Root:Debian:11. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-5435 as tracked by Debian 11 (Root.io), for the package glibc. The fix is available in version 2.31-13+deb11u14.root.io.14; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability high.

Weakness class

ROOT-OS-DEBIAN-11-CVE-2026-5435 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

ROOT-OS-DEBIAN-11-CVE-2026-5435 is recorded against 2 packages.

  • glibc (fixed in 2.31-13+deb11u14.root.io.14)
  • rootio-glibc (fixed in 2.31-13+deb11u14.root.io.14)

Timeline and source

Published on 20 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

CVE-2026-5435 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-20
Updated 2026-08-20
Modified 2026-08-20
Fix URL N/A

Affected Packages

Software From version Fixed in
glibc — 2.31-13+deb11u14.root.io.14
rootio-glibc — 2.31-13+deb11u14.root.io.14

References

N/A

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.