CVE-2021-31239

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

2.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 84.0% 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 2026-10-14.

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

2023-05-09 00:00Z3 YR AGO

Last updated

2026-10-14 11:39Z15 DAYS AGO

Reserved

2021-04-15

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-125Out-of-bounds ReadBase

Data version

5.2

Document digest

203da32fa35f86e0cb62659e3dbb6ce3d4d8762e30ffbcfec61f37e992d65b36

• www.sqlite.orghttps://www.sqlite.org/cves.html
• www.sqlite.orghttps://www.sqlite.org/forum/forumpost/d9fce1a89b
• github.comhttps://github.com/Tsiming/Vulnerabilities/blob/main/SQLite/CVE-2021-31239
• lists.fedoraproject.orgFEDORA-2023-69264c19f9https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73XUIHJ6UT75VFPDPLJOXJON7MVIKVZI/vendor-advisory
• lists.fedoraproject.orgFEDORA-2023-5c477a04cahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FXFL4TDAH72PRCPD5UPZMJMKIMVOPLTI/vendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20230609-0010/
• security.gentoo.orgGLSA-202311-03https://security.gentoo.org/glsa/202311-03vendor-advisory
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-472630.html
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html