What’s Vulnerable › Vulnerabilities

CVE-2026-58470: GNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-07 · updated 2026-10-25
• Weakness: CWE-190

Description

GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parse_content_range() function within src/http.c that allows server-controlled values to cause signed integer arithmetic to overflow. Attackers can supply malicious Content-Range header values to trigger undefined behavior and download desynchronization in the affected client.

Affected products

• gnuwget wget: through 1.25.0

References

• https://gitlab.com/gnuwget/wget/-/commit/43d3ba9336bc94937e6fae2365c6ffd30c34ffcf
• https://www.vulncheck.com/advisories/gnu-wget-integer-overflow-via-content-range-header-parsing

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