CVE-2026-13574

LOWPre-NVD 3.33.3—
EchelonGraph scoreMEDIUM 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
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.3Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. There are still doubts about whether this vulnerability truly exists. The LLVM project explains, that the reported behavior is outside its documented security scope and therefore not considered a security vulnerability.

CVSS v3
3.3
EG Score
3.3(medium)
EG Risk
31(Track)
EG Risk 31/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity33% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 29, 2026

Last Modified

July 7, 2026

References (8)

Vendor Advisories for CVE-2026-13574(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.

Affected Packages

(7 across 4 ecosystems)
Debian:14(3)
PackageVulnerable rangeFixed inDependents
llvm-toolchain-191:19.1.7-10 ... 1:19.1.7-9 (21 versions)——
llvm-toolchain-211:21.1.0-1 ... 1:21.1.8-9 (34 versions)——
llvm-toolchain-221:22.1.0-1 ... 1:22.1.8-1 (14 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
llvm-toolchain-181:18.1.8-18, 1:18.1.8-20——
llvm-toolchain-191:19.1.7-10 ... 1:19.1.7-9 (21 versions)——
Debian:11(1)
PackageVulnerable rangeFixed inDependents
llvm-toolchain-191:19.1.0-1 ... 1:19.1.7-9 (54 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
llvm-toolchain-191:19.1.0-1 ... 1:19.1.7-9 (54 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 49× 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.

Showing the most recent 100 of 112 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:11 UTCEPSS rescore
  3. 2026-09-01 13:53 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 19:08 UTCEG score recompute
  6. 2026-08-30 19:08 UTCVendor advisory
  7. 2026-08-30 19:08 UTCGHSA enrichment
  8. 2026-08-30 01:21 UTCEPSS rescore
  9. 2026-08-28 21:40 UTCEPSS rescore
  10. 2026-08-27 22:47 UTCEG score recompute
  11. 2026-08-27 22:47 UTCVendor advisory
  12. 2026-08-27 22:47 UTCGHSA enrichment
  13. 2026-08-27 14:24 UTCEPSS rescore
  14. 2026-08-25 13:48 UTCEPSS rescore
  15. 2026-08-24 21:46 UTCEG score recompute
  16. 2026-08-24 21:46 UTCVendor advisory
  17. 2026-08-24 21:46 UTCGHSA enrichment
  18. 2026-08-23 00:19 UTCEPSS rescore
  19. 2026-08-21 23:48 UTCEPSS rescore
  20. 2026-08-21 19:28 UTCEG score recompute
  21. 2026-08-21 19:28 UTCVendor advisory
  22. 2026-08-21 19:28 UTCGHSA enrichment
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-19 17:03 UTCEPSS rescore
  25. 2026-08-18 23:10 UTCEG score recompute
Show 75 more
  1. 2026-08-18 23:10 UTCVendor advisory
  2. 2026-08-18 23:10 UTCGHSA enrichment
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-16 14:56 UTCEPSS rescore
  5. 2026-08-16 02:14 UTCEPSS rescore
  6. 2026-08-15 12:57 UTCEG score recompute
  7. 2026-08-15 12:57 UTCVendor advisory
  8. 2026-08-15 12:57 UTCGHSA enrichment
  9. 2026-08-15 01:30 UTCEPSS rescore
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-12 16:39 UTCEG score recompute
  12. 2026-08-12 16:39 UTCVendor advisory
  13. 2026-08-12 16:39 UTCGHSA enrichment
  14. 2026-08-12 13:50 UTCEPSS rescore
  15. 2026-08-11 13:42 UTCEPSS rescore
  16. 2026-08-10 23:59 UTCEPSS rescore
  17. 2026-08-09 20:22 UTCEG score recompute
  18. 2026-08-09 20:22 UTCVendor advisory
  19. 2026-08-09 20:22 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-07 00:04 UTCEG score recompute
  22. 2026-08-07 00:04 UTCVendor advisory
  23. 2026-08-07 00:03 UTCGHSA enrichment
  24. 2026-08-06 13:46 UTCEPSS rescore
  25. 2026-08-05 19:17 UTCEPSS rescore
  26. 2026-08-04 15:09 UTCEPSS rescore
  27. 2026-08-04 10:38 UTCEPSS rescore
  28. 2026-08-04 03:46 UTCEG score recompute
  29. 2026-08-04 03:46 UTCVendor advisory
  30. 2026-08-04 03:46 UTCGHSA enrichment
  31. 2026-08-03 10:35 UTCEPSS rescore
  32. 2026-08-02 02:26 UTCEPSS rescore
  33. 2026-08-01 07:28 UTCEG score recompute
  34. 2026-08-01 07:28 UTCVendor advisory
  35. 2026-08-01 07:28 UTCGHSA enrichment
  36. 2026-08-01 04:15 UTCEPSS rescore
  37. 2026-07-30 16:27 UTCEPSS rescore
  38. 2026-07-30 01:30 UTCEPSS rescore
  39. 2026-07-29 10:37 UTCEG score recompute
  40. 2026-07-29 10:37 UTCVendor advisory
  41. 2026-07-29 10:37 UTCGHSA enrichment
  42. 2026-07-28 15:36 UTCEPSS rescore
  43. 2026-07-26 14:16 UTCEG score recompute
  44. 2026-07-26 14:16 UTCVendor advisory
  45. 2026-07-26 14:16 UTCGHSA enrichment
  46. 2026-07-24 14:17 UTCEPSS rescore
  47. 2026-07-23 14:18 UTCEPSS rescore
  48. 2026-07-23 03:05 UTCEG score recompute
  49. 2026-07-22 14:08 UTCEPSS rescore
  50. 2026-07-21 15:24 UTCEPSS rescore
  51. 2026-07-20 17:08 UTCEPSS rescore
  52. 2026-07-19 14:30 UTCEPSS rescore
  53. 2026-07-19 02:28 UTCEPSS rescore
  54. 2026-07-18 10:04 UTCEPSS rescore
  55. 2026-07-16 17:35 UTCVendor advisory
  56. 2026-07-16 17:35 UTCGHSA enrichment
  57. 2026-07-16 17:02 UTCEPSS rescore
  58. 2026-07-15 16:57 UTCEPSS rescore
  59. 2026-07-15 02:00 UTCEPSS rescore
  60. 2026-07-13 22:30 UTCEPSS rescore
  61. 2026-07-13 20:36 UTCVendor advisory
  62. 2026-07-13 20:36 UTCGHSA enrichment
  63. 2026-07-13 06:12 UTCEPSS rescore
  64. 2026-07-12 05:46 UTCEPSS rescore
  65. 2026-07-11 08:27 UTCEPSS rescore
  66. 2026-07-11 00:18 UTCVendor advisory
  67. 2026-07-11 00:18 UTCGHSA enrichment
  68. 2026-07-09 19:10 UTCEPSS rescore
  69. 2026-07-08 15:15 UTCEPSS rescore
  70. 2026-07-08 15:15 UTCEPSS rescore
  71. 2026-07-08 03:48 UTCVendor advisory
  72. 2026-07-08 03:48 UTCGHSA enrichment
  73. 2026-07-07 16:12 UTCNVD updateCVSS v4 → 1.9
  74. 2026-07-07 14:52 UTCMITRE cvelistV5CVSS v4 → 4.8
  75. 2026-07-07 13:46 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13574?
CVE-2026-13574 is a low vulnerability published on June 29, 2026. A vulnerability was determined in llvm llvm-project up to 22.1.6. This impacts the function GCRelocateInst::getBasePtr in the library llvm/lib/IR/IntrinsicInst.cpp of the component Bitcode File Handler. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the…
When was CVE-2026-13574 disclosed?
CVE-2026-13574 was first published in the National Vulnerability Database on June 29, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13574 actively exploited?
CVE-2026-13574 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.2% of all scored CVEs.
What is the CVSS score of CVE-2026-13574?
CVE-2026-13574 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-13574?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13574, 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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