HOMEVULNERABILITIESCVE-2026-1757
MEDIUM

CVE-2026-1757

Published: February 2, 2026· Updated: Mar 12, 2026

6.2
CVSS v3.1

Official Description

A flaw was identified in the interactive shell of the xmllint utility, part of the libxml2 project, where memory allocated for user input is not properly released under certain conditions. When a user submits input consisting only of whitespace, the program skips command execution but fails to free the allocated buffer. Repeating this action causes memory to continuously accumulate. Over time, this can exhaust system memory and terminate the xmllint process, creating a denial-of-service condition on the local system.

NVD Source

Technical Analysis

CVE-2026-1757 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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GitHub PoC Search
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Rapid7 / Metasploit
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NVD Detail
Official NIST entry
MITRE CVE
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Quick Facts

CVE IDCVE-2026-1757
CVSS Score6.2 / 10
SeverityMEDIUM
CISA KEVNo
PublishedFeb 2, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-1757 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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