CVE-2026-16277

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-20. 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: 1%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. When querying a remote rpcbind service with rpcinfo -l, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 21, 2026

Advisory Details (4)

Auto-updated Jul 21, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: redhat.
generic🔴 Active Exploitation

LFS and BLFS consolidated list of security advisories

https://www.linuxfromscratch.org/blfs/advisories/consolidated.html
generic

git.linux-nfs.org Git - steved/rpcbind.git/commitdiff

https://git.linux-nfs.org/?p=steved/rpcbind.git;a=commitdiff;h=bb9bb7286a4c345442946dc2ce3c9e7f67e96d4d
redhat

2462085 – (CVE-2026-16277) CVE-2026-16277 rpcbind: rpcbind: stack buffer overflow in rpcinfo rpcbaddrlist()

https://bugzilla.redhat.com/show_bug.cgi?id=2462085
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16277

Vendor Advisories for CVE-2026-16277(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 / 89× 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 158 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 09:29 UTCEG score recompute
  4. 2026-09-11 09:29 UTCGHSA enrichment
  5. 2026-09-10 09:34 UTCEPSS rescore
  6. 2026-09-09 11:58 UTCEG score recompute
  7. 2026-09-09 11:58 UTCVendor advisory
  8. 2026-09-09 11:58 UTCGHSA enrichment
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-07 22:57 UTCEG score recompute
  11. 2026-09-07 22:57 UTCVendor advisory
  12. 2026-09-07 22:57 UTCGHSA enrichment
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-06 11:47 UTCEG score recompute
  16. 2026-09-06 11:47 UTCVendor advisory
  17. 2026-09-06 11:47 UTCGHSA enrichment
  18. 2026-09-05 09:35 UTCEG score recompute
  19. 2026-09-05 09:35 UTCVendor advisory
  20. 2026-09-05 09:35 UTCGHSA enrichment
  21. 2026-09-04 05:06 UTCEPSS rescore
  22. 2026-09-02 14:11 UTCEPSS rescore
  23. 2026-09-01 13:53 UTCEPSS rescore
  24. 2026-09-01 04:39 UTCEPSS rescore
  25. 2026-08-31 04:36 UTCEG score recompute
Show 75 more
  1. 2026-08-31 04:36 UTCVendor advisory
  2. 2026-08-31 04:35 UTCGHSA enrichment
  3. 2026-08-30 19:17 UTCEPSS rescore
  4. 2026-08-30 02:38 UTCEG score recompute
  5. 2026-08-30 02:38 UTCVendor advisory
  6. 2026-08-30 02:37 UTCGHSA enrichment
  7. 2026-08-30 01:22 UTCEPSS rescore
  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-28 01:41 UTCEG score recompute
  10. 2026-08-28 01:41 UTCVendor advisory
  11. 2026-08-28 01:41 UTCGHSA enrichment
  12. 2026-08-27 14:25 UTCEPSS rescore
  13. 2026-08-26 22:53 UTCEG score recompute
  14. 2026-08-26 22:53 UTCVendor advisory
  15. 2026-08-26 22:53 UTCGHSA enrichment
  16. 2026-08-26 14:46 UTCEPSS rescore
  17. 2026-08-25 20:55 UTCEG score recompute
  18. 2026-08-25 20:55 UTCVendor advisory
  19. 2026-08-25 20:55 UTCGHSA enrichment
  20. 2026-08-25 13:48 UTCEPSS rescore
  21. 2026-08-24 18:59 UTCEG score recompute
  22. 2026-08-24 18:59 UTCVendor advisory
  23. 2026-08-24 18:59 UTCGHSA enrichment
  24. 2026-08-23 15:48 UTCEG score recompute
  25. 2026-08-23 15:48 UTCVendor advisory
  26. 2026-08-23 15:48 UTCGHSA enrichment
  27. 2026-08-23 00:19 UTCEPSS rescore
  28. 2026-08-22 13:51 UTCEG score recompute
  29. 2026-08-22 13:51 UTCVendor advisory
  30. 2026-08-22 13:51 UTCGHSA enrichment
  31. 2026-08-21 23:49 UTCEPSS rescore
  32. 2026-08-21 11:54 UTCEG score recompute
  33. 2026-08-21 11:54 UTCVendor advisory
  34. 2026-08-21 11:54 UTCGHSA enrichment
  35. 2026-08-20 22:55 UTCEPSS rescore
  36. 2026-08-20 09:56 UTCEG score recompute
  37. 2026-08-20 09:56 UTCVendor advisory
  38. 2026-08-20 09:56 UTCGHSA enrichment
  39. 2026-08-19 17:03 UTCEPSS rescore
  40. 2026-08-19 07:59 UTCEG score recompute
  41. 2026-08-19 07:59 UTCVendor advisory
  42. 2026-08-19 07:59 UTCGHSA enrichment
  43. 2026-08-18 13:48 UTCEPSS rescore
  44. 2026-08-18 06:02 UTCEG score recompute
  45. 2026-08-18 06:02 UTCGHSA enrichment
  46. 2026-08-17 13:47 UTCEPSS rescore
  47. 2026-08-17 04:05 UTCEG score recompute
  48. 2026-08-17 04:05 UTCVendor advisory
  49. 2026-08-17 04:05 UTCGHSA enrichment
  50. 2026-08-16 14:56 UTCEPSS rescore
  51. 2026-08-16 02:14 UTCEPSS rescore
  52. 2026-08-16 02:07 UTCEG score recompute
  53. 2026-08-16 02:07 UTCVendor advisory
  54. 2026-08-16 02:07 UTCGHSA enrichment
  55. 2026-08-15 01:30 UTCEPSS rescore
  56. 2026-08-15 00:10 UTCVendor advisory
  57. 2026-08-15 00:10 UTCGHSA enrichment
  58. 2026-08-13 22:13 UTCEG score recompute
  59. 2026-08-13 22:13 UTCVendor advisory
  60. 2026-08-13 22:13 UTCGHSA enrichment
  61. 2026-08-13 22:00 UTCEPSS rescore
  62. 2026-08-12 20:16 UTCEG score recompute
  63. 2026-08-12 20:16 UTCVendor advisory
  64. 2026-08-12 20:16 UTCGHSA enrichment
  65. 2026-08-12 13:50 UTCEPSS rescore
  66. 2026-08-11 18:20 UTCEG score recompute
  67. 2026-08-11 18:20 UTCVendor advisory
  68. 2026-08-11 18:20 UTCGHSA enrichment
  69. 2026-08-11 13:42 UTCEPSS rescore
  70. 2026-08-11 00:00 UTCEPSS rescore
  71. 2026-08-10 16:04 UTCGHSA enrichment
  72. 2026-08-09 13:47 UTCEG score recompute
  73. 2026-08-09 13:47 UTCVendor advisory
  74. 2026-08-09 13:47 UTCGHSA enrichment
  75. 2026-08-09 13:46 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-16277?
CVE-2026-16277 is a medium vulnerability published on July 20, 2026. A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with rpcinfo -l, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this…
When was CVE-2026-16277 disclosed?
CVE-2026-16277 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16277 actively exploited?
CVE-2026-16277 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.4% of all scored CVEs.
What is the CVSS score of CVE-2026-16277?
CVE-2026-16277 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-16277?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16277, 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-2026-16277

Explore →

Is Your Infrastructure Affected by CVE-2026-16277?

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

Start Free Scan →Browse All CVEs