CVE-2022-2795

HIGHNVD 5.37.5▲
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-09-22. NVD baseline CVSS 5.3; sources differ by 2.2.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 5.3Exploit: None knownExposed: 0

A fix is available — apply it.

By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.

CVSS v3
5.3
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation2% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
76%
KEV
Not listed

Published

September 21, 2022

Last Modified

September 1, 2026

Advisory Details (8)

Auto-updated Sep 1, 2026
Patch available.
generic

CVE-2022-2795: Processing large delegations may severely degrade resolver performance

https://kb.isc.org/docs/cve-2022-2795
generic

oss-security - ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178)

http://www.openwall.com/lists/oss-security/2022/09/21/3
generic

[SECURITY] [DSA 5235-1] bind9 security update

https://www.debian.org/security/2022/dsa-5235
generic

ISC BIND: Multiple Vulnerabilities (GLSA 202210-25) — Gentoo security

https://security.gentoo.org/glsa/202210-25
generic

[SECURITY] Fedora 35 Update: bind-dyndb-ldap-11.9-16.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/
generic

[SECURITY] Fedora 36 Update: bind-9.16.33-1.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/
generic

[SECURITY] Fedora 37 Update: bind-9.18.7-1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/
generic Patch Available

[SECURITY] [DLA 3138-1] bind9 security update

https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html

Vendor Advisories for CVE-2022-2795(1)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntubind9-host (1:9.18.1-1ubuntu1.2) @ jammy2026-09-01ubuntu
ubuntubind9-host (1:9.9.5.dfsg-3ubuntu0.19+esm7) @ trusty2026-09-01ubuntu
redhatdhcp-12:4.3.6-47.el8_6.22024-05-07redhat
redhatbind-32:9.11.36-8.el82023-05-16redhat
redhatbind9.16-32:9.16.23-0.14.el82023-05-16redhat
redhatbind-32:9.16.23-11.el92023-05-09redhat
redhatbind-32:9.11.4-26.P2.el7_9.132023-01-24redhat

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

(17 across 17 ecosystems)
Alpine:v3.13(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.33-r0—
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.33-r0—
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.33-r0—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
bind—9.16.33-r0—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
bind—9.18.7-r0—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
bind91:9.11.5.P4+dfsg-5.1 ... 1:9.11.5.P4+dfsg-5.1+deb10u7 (8 versions)1:9.11.5.P4+dfsg-5.1+deb10u8—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
bind91:9.16.15-1 ... 1:9.16.27-1~deb11u1~bpo10+1 (7 versions)1:9.16.33-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.18.7-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.18.7-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
bind9—1:9.18.7-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

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 11× in last 7d / 32× 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 162 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2022-2795?
CVE-2022-2795 is a high vulnerability published on September 21, 2022. By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
When was CVE-2022-2795 disclosed?
CVE-2022-2795 was first published in the National Vulnerability Database on September 21, 2022, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-2795 actively exploited?
CVE-2022-2795 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 23.5% of all scored CVEs.
What is the CVSS score of CVE-2022-2795?
CVE-2022-2795 has a CVSS v3 base score of 5.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.
How do I remediate CVE-2022-2795?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-2795, 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-2022-2795

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