🛡️ CVE-2026-58472 — wget

🟡 CVSS 5.9 — Medium ✅ No Known Exploit CWE-190 NVD
5.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase.

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 none, integrity low, availability high.

Weakness class

CVE-2026-58472 is classified as CWE-190: Integer Overflow or Wraparound. Arithmetic produces a value too large for its type and wraps around, so a later size or bounds check passes when it should not.

Affected software

CVE-2026-58472 is recorded against 1 package.

  • wget (fixed in 1.25.0)

Timeline and source

Published on 7 July 2026 and last revised on 9 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

gitlab.com
www.vulncheck.com

Details

Severity MEDIUM
CVSS Score 5.9
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
CWE CWE-190
Public Exploit ✅ No
Source NVD
Published 2026-07-07
Updated 2026-08-11
Modified 2026-07-09

Affected Packages

Software From version Fixed in
wget — 1.25.0

Similar Threats

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