CVE-2022-40303

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

22.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 97.5% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-11-22 00:00Z3 YR AGO

Last updated

2025-04-29 04:24Z1 YR AGO

Reserved

2022-09-09

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

40442f29a2cf8f19feca64b050cc239a1dcf394637d3b2f1a532a68b5ac028b0

• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20221209-0003/
• support.apple.comhttps://support.apple.com/kb/HT213534
• support.apple.comhttps://support.apple.com/kb/HT213533
• support.apple.comhttps://support.apple.com/kb/HT213531
• support.apple.comhttps://support.apple.com/kb/HT213536
• support.apple.comhttps://support.apple.com/kb/HT213535
• seclists.org20221220 APPLE-SA-2022-12-13-2 iOS 15.7.2 and iPadOS 15.7.2http://seclists.org/fulldisclosure/2022/Dec/21mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-6 macOS Big Sur 11.7.2http://seclists.org/fulldisclosure/2022/Dec/25mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-7 tvOS 16.2http://seclists.org/fulldisclosure/2022/Dec/26mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-5 macOS Monterey 12.6.2http://seclists.org/fulldisclosure/2022/Dec/24mailing-list
• seclists.org20221220 APPLE-SA-2022-12-13-8 watchOS 9.2http://seclists.org/fulldisclosure/2022/Dec/27mailing-list