CVE-2026-58472
Publication date 7 July 2026
Last updated 16 July 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| wget | 26.04 LTS resolute |
Fixed 1.25.0-2ubuntu4.2
|
| 24.04 LTS noble |
Fixed 1.21.4-1ubuntu4.3
|
|
| 22.04 LTS jammy |
Fixed 1.21.2-2ubuntu1.3
|
|
| 20.04 LTS focal |
Fixed 1.20.3-1ubuntu2.1+esm2
|
|
| 18.04 LTS bionic |
Fixed 1.19.4-1ubuntu2.2+esm3
|
|
| 16.04 LTS xenial |
Fixed 1.17.1-1ubuntu1.5+esm3
|
|
| 14.04 LTS trusty |
Fixed 1.15-1ubuntu1.14.04.5+esm2
|
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CVSS version:
Base score
6.0 · Medium
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
Base score
5.9 · Medium
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8543-1
- Wget vulnerabilities
- 14 July 2026