Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-10878

CVE-2020-10878HIGH

n/a n/a — Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  L  L  H    8.6   .0488   92.0     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Mar 23  Reserved by mitre
  Jun 5   Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2020-10878. Received CVSS 8.6 and CPE data from NVD.

CWE-190 · CNA: mitre · CVSS v3.1 · 16 references · NVD status: Modified

Description

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 23, 2020	Reserved	Reserved by mitre
June 5, 2020	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2020-10878. Received CVSS 8.6 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-190

References (16)

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod [Third Party Advisory]
https://github.com/Perl/perl5/compare/v5.30.2...v5.30.3 [Patch, Third Party Advisory]
https://github.com/perl/perl5/commit/0a320d753fe7fca03df259a4dfd8e641e51edaa8 [Patch, Third Party Advisory]
https://github.com/perl/perl5/commit/3295b48defa0f8570114877b063fe546dd348b3c [Patch, Third Party Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IN3TTBO5KSGWE5IRIKDJ5JSQRH7ANNXE/
https://security.gentoo.org/glsa/202006-03 [Third Party Advisory]
https://security.netapp.com/advisory/ntap-20200611-0001/ [Third Party Advisory]
https://www.oracle.com//security-alerts/cpujul2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuApr2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuapr2022.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpujan2021.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpujan2022.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuoct2020.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpuoct2021.html [Patch, Third Party Advisory]

Authoritative record: CVE-2020-10878 at cve.org

Weaknesses: CWE-190

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-10878 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.