6.9

CVE-2026-56407

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libexpat Project ≫ Libexpat Version < 2.8.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.1% 0.012
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@mitre.org 6.9 1.4 5.5
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE-190 Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

https://github.com/libexpat/libexpat/pull/1262
Patch
Issue Tracking