Vulnerability in Isc Bind

CVE-2022-2906

An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the potential to deny service.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.1th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-2906: held from 0.021 to 0.021.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: +0.000

Affected products

  • Isc Bind
  • Isc Bind9 — versions Open Source Branch 9.18 9.18.0 through versions before 9.18.7, Development Branch 9.19 9.19.0 through versions before 9.19.5

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-2906?
CVE-2022-2906 is a high-severity vulnerability in Isc Bind, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2022-09-21.
How severe is CVE-2022-2906?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-2906 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.