CVE-2026-58472

6.0 MEDIUM 0.4% exploit odds Fix listed Memory safety Web app

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-07-07 21:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-25 20:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 6.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-07-07 21:17 UTC
Last modified: 2026-10-25 20:10 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-190 · Integer overflow
Record status: Analyzed

Affected

Gnu Wget ≤ 1.25.0

Attack profile CVSS 4.0 · 6.0

Attack vector: Network
Complexity: High
Attack requirements: None
Privileges needed: None
User interaction: Passive
Confidentiality: None
Integrity: Low
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-58472.md and follow it. Check whether this project is affected by CVE-2026-58472. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record