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Vulnerable Software

Vulnerability Details CVE-2026-58471

GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 12.6%
CVSS Severity
CVSS v3 Score 5.9
Products affected by CVE-2026-58471
  • Gnu » Wget » Version: N/A
    cpe:2.3:a:gnu:wget:-
  • Gnu » Wget » Version: 1.10
    cpe:2.3:a:gnu:wget:1.10
  • Gnu » Wget » Version: 1.10.1
    cpe:2.3:a:gnu:wget:1.10.1
  • Gnu » Wget » Version: 1.10.2
    cpe:2.3:a:gnu:wget:1.10.2
  • Gnu » Wget » Version: 1.11
    cpe:2.3:a:gnu:wget:1.11
  • Gnu » Wget » Version: 1.11.1
    cpe:2.3:a:gnu:wget:1.11.1
  • Gnu » Wget » Version: 1.11.2
    cpe:2.3:a:gnu:wget:1.11.2
  • Gnu » Wget » Version: 1.11.3
    cpe:2.3:a:gnu:wget:1.11.3
  • Gnu » Wget » Version: 1.11.4
    cpe:2.3:a:gnu:wget:1.11.4
  • Gnu » Wget » Version: 1.11.4-1
    cpe:2.3:a:gnu:wget:1.11.4-1
  • Gnu » Wget » Version: 1.12
    cpe:2.3:a:gnu:wget:1.12
  • Gnu » Wget » Version: 1.13
    cpe:2.3:a:gnu:wget:1.13
  • Gnu » Wget » Version: 1.13.1
    cpe:2.3:a:gnu:wget:1.13.1
  • Gnu » Wget » Version: 1.13.3
    cpe:2.3:a:gnu:wget:1.13.3
  • Gnu » Wget » Version: 1.13.4
    cpe:2.3:a:gnu:wget:1.13.4
  • Gnu » Wget » Version: 1.14
    cpe:2.3:a:gnu:wget:1.14
  • Gnu » Wget » Version: 1.15
    cpe:2.3:a:gnu:wget:1.15
  • Gnu » Wget » Version: 1.16
    cpe:2.3:a:gnu:wget:1.16
  • Gnu » Wget » Version: 1.16.1
    cpe:2.3:a:gnu:wget:1.16.1
  • Gnu » Wget » Version: 1.16.2
    cpe:2.3:a:gnu:wget:1.16.2
  • Gnu » Wget » Version: 1.16.3
    cpe:2.3:a:gnu:wget:1.16.3
  • Gnu » Wget » Version: 1.17
    cpe:2.3:a:gnu:wget:1.17
  • Gnu » Wget » Version: 1.17.1
    cpe:2.3:a:gnu:wget:1.17.1
  • Gnu » Wget » Version: 1.18
    cpe:2.3:a:gnu:wget:1.18
  • Gnu » Wget » Version: 1.19
    cpe:2.3:a:gnu:wget:1.19
  • Gnu » Wget » Version: 1.19.1
    cpe:2.3:a:gnu:wget:1.19.1
  • Gnu » Wget » Version: 1.19.2
    cpe:2.3:a:gnu:wget:1.19.2
  • Gnu » Wget » Version: 1.19.3
    cpe:2.3:a:gnu:wget:1.19.3
  • Gnu » Wget » Version: 1.19.4
    cpe:2.3:a:gnu:wget:1.19.4
  • Gnu » Wget » Version: 1.19.5
    cpe:2.3:a:gnu:wget:1.19.5
  • Gnu » Wget » Version: 1.20
    cpe:2.3:a:gnu:wget:1.20
  • Gnu » Wget » Version: 1.20.1
    cpe:2.3:a:gnu:wget:1.20.1
  • Gnu » Wget » Version: 1.4.0
    cpe:2.3:a:gnu:wget:1.4.0
  • Gnu » Wget » Version: 1.4.1
    cpe:2.3:a:gnu:wget:1.4.1
  • Gnu » Wget » Version: 1.4.2
    cpe:2.3:a:gnu:wget:1.4.2
  • Gnu » Wget » Version: 1.4.3
    cpe:2.3:a:gnu:wget:1.4.3
  • Gnu » Wget » Version: 1.5.0
    cpe:2.3:a:gnu:wget:1.5.0
  • Gnu » Wget » Version: 1.5.3
    cpe:2.3:a:gnu:wget:1.5.3
  • Gnu » Wget » Version: 1.6
    cpe:2.3:a:gnu:wget:1.6
  • Gnu » Wget » Version: 1.7
    cpe:2.3:a:gnu:wget:1.7
  • Gnu » Wget » Version: 1.7.1
    cpe:2.3:a:gnu:wget:1.7.1
  • Gnu » Wget » Version: 1.8
    cpe:2.3:a:gnu:wget:1.8
  • Gnu » Wget » Version: 1.8.1
    cpe:2.3:a:gnu:wget:1.8.1
  • Gnu » Wget » Version: 1.8.2
    cpe:2.3:a:gnu:wget:1.8.2
  • Gnu » Wget » Version: 1.9
    cpe:2.3:a:gnu:wget:1.9
  • Gnu » Wget » Version: 1.9.1
    cpe:2.3:a:gnu:wget:1.9.1


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