CVE-2026-16461

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-21. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A stack-based buffer overflow was found in rpcbind's rpcinfo utility. In rpcbdump() short mode (used by rpcinfo -s), version numbers from a remote RPCBPROC_DUMP reply are written into a fixed-size stack buffer without bounds checking. A user or administrator who runs rpcinfo -s against a malicious or compromised rpcbind endpoint could experience a crash or denial of service of the rpcinfo client.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jul 21, 2026
Patch available. Sources: redhat.
redhat

2502719 – (CVE-2026-16461) CVE-2026-16461 rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbdump() short-mode version-list formatting

https://bugzilla.redhat.com/show_bug.cgi?id=2502719
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16461

Vendor Advisories for CVE-2026-16461(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
rpcbind1.2.5-9 ... 1.2.7-1 (11 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
rpcbind1.2.6-6, 1.2.6-7, 1.2.6-8, 1.2.6-8.1, 1.2.7-1——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
rpcbind1.2.7-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
rpcbind1.2.7-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 87× 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 159 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-16461?
CVE-2026-16461 is a medium vulnerability published on July 21, 2026. A stack-based buffer overflow was found in rpcbind's rpcinfo utility. In rpcbdump() short mode (used by rpcinfo -s), version numbers from a remote RPCBPROC_DUMP reply are written into a fixed-size stack buffer without bounds checking. A user or administrator who runs rpcinfo -s against a malicious…
When was CVE-2026-16461 disclosed?
CVE-2026-16461 was first published in the National Vulnerability Database on July 21, 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-2026-16461 actively exploited?
CVE-2026-16461 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 82.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16461?
CVE-2026-16461 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-16461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16461, 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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