CVE-2026-13573

LOWPre-NVD 3.33.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Trending — 5 sources updated this weekElevated

Also known asEUVD-2026-40115 (ENISA EUVD) · GHSA-p6v6-grg5-r9mw (GitHub Security Advisories)Source: ENISA EUVD

3.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.3Exploit: No code on recordExposed services: Not assessed

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 presence of this vulnerability remains uncertain at this time. 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
3.3LOWmedium confidence
EG Risk
31
EG Risk 31/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity33% × 45%
Impact severity (EG Severity): CVSS 3.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
6th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (3.3): severity, escalated by confirmed exploitation. This CVE's 3.3 is its impact severity (EG Severity), not escalated.

EG Severity
3.3 LOWCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 29, 2026

Last Modified

October 25, 2026

Patch Availability(2)

Vendor / EcosystemFix (by version range) / 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

(9 across 4 ecosystems)
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
llvm-toolchain-181:18.1.8-18, 1:18.1.8-20
  • every version on: no fix on record
—
llvm-toolchain-191:19.1.7-10 ... 1:19.1.7-9 (21 versions)
  • every version on: no fix on record
—
llvm-toolchain-221:22.1.0-1 ... 1:22.1.8-2 (22 versions)
  • every version on: no fix on record
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
llvm-toolchain-191:19.1.7-10 ... 1:19.1.7-9 (21 versions)
  • every version on: no fix on record
—
llvm-toolchain-211:21.1.0-1 ... 1:21.1.8-9 (37 versions)
  • every version on: no fix on record
—
llvm-toolchain-221:22.1.0-1 ... 1:22.1.8-2 (22 versions)
  • every version on: no fix on record
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
llvm-toolchain-191:19.1.0-1 ... 1:19.1.7-9 (54 versions)
  • every version on: no fix on record
—
llvm-toolchain-221:22.1.0-1 ... 1:22.1.8-2 (22 versions)
  • every version on: no fix on record
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
llvm-toolchain-191:19.1.0-1 ... 1:19.1.7-9 (54 versions)
  • every version on: no fix on record
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 179 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 79 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-25 21:40 UTCEG score recompute
  4. 2026-10-25 21:40 UTCVendor advisory
  5. 2026-10-25 21:40 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  6. 2026-10-25 21:25 UTCNVD updateCVSS v4 → 1.9
  7. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-10-25 14:48 UTCEG score recompute
  9. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-18 05:03 UTCEG score recompute
  17. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-13 18:54 UTCOSV refresh
  22. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-12 16:35 UTCEG score recompute
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-11 20:11 UTCEG score recompute
Show 75 more
  1. 2026-10-11 18:23 UTCEG score recompute
  2. 2026-10-11 14:57 UTCEG score recompute
  3. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-09-23 07:32 UTCEG score recompute
  20. 2026-09-23 07:32 UTCVendor advisory
  21. 2026-09-23 07:32 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  22. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-09-18 06:59 UTCEG score recompute
  25. 2026-09-18 06:59 UTCVendor advisory
  26. 2026-09-18 06:59 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  27. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  29. 2026-09-12 15:15 UTCEG score recompute
  30. 2026-09-12 15:15 UTCVendor advisory
  31. 2026-09-12 15:15 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  32. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  33. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  34. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  35. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  36. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  37. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  38. 2026-09-06 14:44 UTCEG score recompute
  39. 2026-09-06 14:44 UTCVendor advisory
  40. 2026-09-06 14:44 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  41. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  44. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  45. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  46. 2026-08-30 18:42 UTCEG score recompute
  47. 2026-08-30 18:42 UTCVendor advisory
  48. 2026-08-30 18:42 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  49. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  50. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-08-27 22:47 UTCEG score recompute
  52. 2026-08-27 22:47 UTCVendor advisory
  53. 2026-08-27 22:47 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  54. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  56. 2026-08-24 00:03 UTCEG score recompute
  57. 2026-08-24 00:03 UTCVendor advisory
  58. 2026-08-24 00:03 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  59. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-21 04:52 UTCEG score recompute
  62. 2026-08-21 04:52 UTCVendor advisory
  63. 2026-08-21 04:52 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  64. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-08-18 07:24 UTCEG score recompute
  68. 2026-08-18 07:24 UTCVendor advisory
  69. 2026-08-18 07:24 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  70. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  71. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-15 04:25 UTCEG score recompute
  73. 2026-08-15 04:25 UTCVendor advisory
  74. 2026-08-15 04:25 UTCGHSA enrichmentGHSA-p6v6-grg5-r9mw · GitHub severity LOW · GitHub CVSS 3.3
  75. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2026-13573?
CVE-2026-13573 is a low-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-13573 published?
The CVE record for CVE-2026-13573 was published on June 29, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 25, 2026; the record at its source may have been updated since.
Is CVE-2026-13573 actively exploited?
CVE-2026-13573 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-13573?
CVE-2026-13573 has a CVSS base score of 3.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-13573?
A fix for CVE-2026-13573 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-13573 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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