CVE-2020-1916
highpriority · track · 39EPSS 0.014 · 72 %ileEUUSEPSS · scored 2026-10-27
An incorrect size calculation in ldap_escape may lead to an integer overflow when overly long input is passed in, resulting in an out-of-bounds write. This issue affects HHVM prior to 4.56.2, all versions between 4.57.0 and 4.78.0, 4.79.0, 4.80.0, 4.81.0, 4.82.0, 4.83.0.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (14)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4cnnvd
- https://hhvm.com/blog/2020/11/12/security-update.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-1916cnnvd
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4enisa_euvd
- https://hhvm.com/blog/2020/11/12/security-update.htmlenisa_euvd
- https://github.com/facebook/hhvm/commit/abe0b29e4d3a610f9bc920b8be4ad8403364c2d4PatchThird Party Advisorynvd
- https://hhvm.com/blog/2020/11/12/security-update.htmlRelease NotesVendor Advisorynvd
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