MEDIUM

CVE-2022-2795

Q: What is CVE-2022-2795?

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.

Q: Is CVE-2022-2795 actively exploited?

Active exploitation of CVE-2022-2795 has not been confirmed. Its EPSS score was 2.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-2795?

CVE-2022-2795 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

CVSS v3

5.3

MEDIUM

EPSS Score

2.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

bindAlmaLinux:9all versions · fixed in 32:9.16.23-11.el9and 9 other packages
bindAlmaLinux:8all versions · fixed in 32:9.11.36-8.el8and 16 other packages
bind9.16AlmaLinux:8all versions · fixed in 32:9.16.23-0.14.el8and 8 other packages

Vendor advisories

CVE-2022-2795 Red Hat Product Security718 products fixed · 7 known affected
bind: processing large delegations may severely degrade resolver performance
bind as a component of Red Hat Enterprise Linux 6 · bind-chroot as a component of Red Hat Enterprise Linux 6 · bind-devel as a component of Red Hat Enterprise Linux 6
ICSA-25-105-08 CISA2 known affected
ABB M2M Gateway
ABB M2M Gateway ARM600, firmware versions = 4.1.2 <= 5.0.3 · ABB M2M Gateway SW, software versions = 5.0.1 <= 5.0.3
RHSA-2024:2720 Red Hat Product Security220 products fixed
Red Hat Security Advisory: bind and dhcp security update
RHSA-2023:3002 Red Hat Product Security171 products fixed
Red Hat Security Advisory: bind security and bug fix update
RHSA-2023:2792 Red Hat Product Security75 products fixed
Red Hat Security Advisory: bind9.16 security and bug fix update
RHSA-2023:2261 Red Hat Product Security76 products fixed
Red Hat Security Advisory: bind security and bug fix update

1 more advisory

Full record on NVD

Description

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Published: 2022-09-21
Last Modified: 2026-09-01

Frequently asked questions

What is CVE-2022-2795?

Is CVE-2022-2795 actively exploited?

Active exploitation of CVE-2022-2795 has not been confirmed. Its EPSS score was 2.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-2795?

CVE-2022-2795 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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