CVE-2026-13573

LOWPre-NVD 3.33.3—
EchelonGraph scoreHIGH confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2026-06-29. a secondary CVSS source baseline 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
3.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.3Exploit: NoneExposed: 0

A fix is available — apply it.

A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
3.3
EG Score
3.3(high)
EPSS
2.5%
KEV
Not listed

Published

June 29, 2026

Last Modified

June 29, 2026

References (7)

Vendor Advisories for CVE-2026-13573(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatllvm21-main-21.1.8-6.hum12026-06-07redhat
redhatllvm-main-21.1.8-1.1.hum12026-04-11redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 13× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-05 05:15 UTCEG score recompute
  3. 2026-07-05 05:15 UTCVendor advisory
  4. 2026-07-05 05:15 UTCGHSA enrichment
  5. 2026-07-04 06:31 UTCEPSS rescore
  6. 2026-07-02 10:02 UTCEG score recompute
  7. 2026-07-02 10:01 UTCGHSA enrichment
  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-29 17:26 UTCNVD updateCVSS v4 → 1.9
  10. 2026-06-29 16:13 UTCMITRE cvelistV5CVSS v4 → 4.8
  11. 2026-06-29 15:26 UTCNVD updateCVSS v4 → 1.9
  12. 2026-06-29 14:52 UTCEG score recompute
  13. 2026-06-29 14:52 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13573?
CVE-2026-13573 is a low vulnerability published on June 29, 2026. A vulnerability was found in llvm llvm-project up to 22.1.6. This affects the function llvm::StringMap::insert in the library /lib/IR/ValueSymbolTable.cpp of the component ValueSymbolTable Module. The manipulation results in stack-based buffer overflow. Attacking locally is a requirement. The…
When was CVE-2026-13573 disclosed?
CVE-2026-13573 was first published in the National Vulnerability Database on June 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13573 actively exploited?
CVE-2026-13573 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-13573?
CVE-2026-13573 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-13573?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13573, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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