CVE Explorer
CVE-2026-25210
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1
Preserved source conflicts
No provider value was silently selected as the winner.
affected · 2 assertions
{"defaultStatus":"unaffected","product":"libexpat","vendor":"libexpat project","versions":[{"lessThan":"2.7.4","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/adp/1/affected/0
Affected products and versions
2 source assertions{"defaultStatus":"unaffected","product":"libexpat","vendor":"libexpat project","versions":[{"lessThan":"2.7.4","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/adp/1/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":6.9,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/adp/1/references/0
{"url":"https://github.com/libexpat/libexpat/pull/1075"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/references/0
{"url":"https://github.com/libexpat/libexpat/pull/1075/commits/9c2d990389e6abe2e44527eeaa8b39f16fe859c7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ee4ecfba6d1ba7156942b3f9b00176bc576332c621d1e2adef932b388eadbeee · sha256:cca92b80545cf0dc… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.