Medium severity · published Jul 7, 2026
CVE-2026-58470
GNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing
5.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WG
wget · gnuwget
through 1.25.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-58470
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-58470
Patch
https://gitlab.com/gnuwget/wget/-/commit/43d3ba9336bc94937e6fae2365c6ffd30c34ffcf
Patch
https://www.vulncheck.com/advisories/gnu-wget-integer-overflow-via-content-range-header-parsing
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