No exploitation reportedFix available

CVE-2020-11656

Q: Is CVE-2020-11656 actively exploited?

Active exploitation of CVE-2020-11656 has not been confirmed. Its EPSS score was 8.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-11656?

CVE-2020-11656 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-04-09
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.

Timeline

dates in UTC

2020-04-0903:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-11656?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-11656?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Oracle communications network charging and control

Branch	Affected	Fixed in	Source
12.0	≥ 12.0.0, ≤ 12.0.3	no fix published	NVD
6.0	= 6.0.1	no fix published	NVD
12.0	= 12.0.2	no fix published	NVD

Oracle outside in technology

Branch	Affected	Fixed in	Source
8.5	= 8.5.4	no fix published	NVD
8.5	= 8.5.5	no fix published	NVD

MySQL

Branch	Affected	Fixed in	Source
8.0	≥ 8.0.0, ≤ 8.0.22	no fix published	NVD

10 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

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.

Vendor advisories

ICSA-25-028-05 CISA1 known affected
Rockwell Automation DataMosaix Private Cloud
Rockwell Automation DataEdgePlatform DataMosaix Private Cloud: <=7.09

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-25-028-05 · 1 productRockwell Automation has addressed these issues in version v7.11.01 and encourages users to update to the newest available version. Rockwell Automation encourages users to mitigate security risks on industrial automation control systems by implement their suggested security best practices, where pos…
Mitigation from the vendor CISA ICSA-25-028-05 · 1 productFor more information about this issue, please see the advisory on the Rockwell Automation security page.

Advisories and patches

cert-portal.siemens.comPatch
www.sqlite.orgPatch · Vendor Advisory
www.tenable.comRelease Notes
www3.sqlite.orgPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-416read 2026-10-23
FIRST EPSSEPSS score8.7 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2020-04-09
Last Modified: 2026-10-14
NVD status: Modified

Frequently asked questions

What is CVE-2020-11656?

In SQLite through 3.31.1, the ALTER TABLE implementation has a use-after-free, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.

Is CVE-2020-11656 actively exploited?

Active exploitation of CVE-2020-11656 has not been confirmed. Its EPSS score was 8.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-11656?

CVE-2020-11656 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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