USN-8543-1: Wget vulnerabilities

unknownCVE-2024-38428 CVE-2026-58469 CVE-2026-58470 CVE-2026-58471 CVE-2026-58472

It was discovered that Wget mishandled semicolons in the userinfo subcomponent of a URL. A remote attacker could possibly use this issue to trick a user into connecting to a different host than intended. This issue only affected Ubuntu 14.04 LTS. (CVE-2024-38428) It was discovered that Wget incorrectly handled Metalink documents containing a whitespace-only URL. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-58469) It was discovered that Wget incorrectly handled Content-Range header values, leading to an integer overflow. A remote attacker could possibly use this issue to cause download desynchronization. (CVE-2026-58470) It was discovered that Wget incorrectly handled character set conversion of server-supplied filenames. A remote attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-58471) It was discovered that Wget incorrectly handled HTML attributes requiring entity encoding. A remote attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2026-58472)

CSIRTS triage

vendor: GNU product: Wget Denial of serviceOtheraffected: Ubuntu 14.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, 24.04 LTS, 26.04 LTS

What: Wget has multiple vulnerabilities that could lead to denial of service and other issues.
Who is affected: Users of Wget on the specified Ubuntu versions are affected by these vulnerabilities.
Urgency: Remediation is urgent for affected versions due to potential denial of service.
Action: Update Wget to the latest version available for your Ubuntu distribution.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Wget

Get an email when a new Wget advisory drops — max one per day, one-click unsubscribe.

Details

Source: Ubuntu Security Notices (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-07-14
Exploitation: Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8543-1

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2024-384280.67% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all scored CVEs.
Low exploitation riskCVE-2026-584690.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.
Low exploitation riskCVE-2026-584700.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all scored CVEs.
Low exploitation riskCVE-2026-584710.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.
Low exploitation riskCVE-2026-584720.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-38428	coverage & exploitation status	NVD · CVE.org
CVE-2026-58469	coverage & exploitation status	NVD · CVE.org
CVE-2026-58470	coverage & exploitation status	NVD · CVE.org
CVE-2026-58471	coverage & exploitation status	NVD · CVE.org
CVE-2026-58472	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.