CVE-2026-43958

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-01. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
Patch available. Sources: redhat.
redhat

2460932 – (CVE-2026-43958) CVE-2026-43958 rrdtool: Stack buffer overflow in rrdcached handle_request_create() allows local privilege escalation via unbounded DS/RRA arguments

https://bugzilla.redhat.com/show_bug.cgi?id=2460932
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-43958

Vendor Advisories for CVE-2026-43958(2)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrrdtool-0:1.7.0-17.el8_102026-07-01redhat
redhatrrdtool-0:1.7.2-22.el9_82026-07-01redhat
redhatrrdtool-0:1.8.0-21.el10_22026-06-30redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
rrdtool1.7.2-3 ... 1.9.0-2.1 (8 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rrdtool1.7.2-4 ... 1.9.0-2.1 (7 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rrdtool1.7.2-4.2, 1.9.0-1, 1.9.0-2, 1.9.0-2.1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rrdtool1.7.2-4.2, 1.9.0-1, 1.9.0-2, 1.9.0-2.1——

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 39× 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 292 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43958?
CVE-2026-43958 is a high vulnerability published on June 1, 2026. A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary…
When was CVE-2026-43958 disclosed?
CVE-2026-43958 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43958 actively exploited?
CVE-2026-43958 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 96.9% of all scored CVEs.
What is the CVSS score of CVE-2026-43958?
CVE-2026-43958 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43958?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43958, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43958

Explore →

Is Your Infrastructure Affected by CVE-2026-43958?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs