Public proof of conceptFix available

CVE-2022-2097

Q: Is CVE-2022-2097 actively exploited?

Active exploitation of CVE-2022-2097 has not been confirmed. Its EPSS score was 4.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-2097?

CVE-2022-2097 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:L/I:N/A:N.

A public proof of concept exists; no exploitation attested.

Published2022-07-05
Fixed in1.0 · 1.0_sp2_update_1
WeaknessCWE-327

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

AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed. Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, they are both unaffected. Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4). Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p).

Timeline

dates in UTC

2022-07-0511:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

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-2022-2097?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-2097?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP · OSV

Siemens sinec ins

Branch	Affected	Fixed in	Source
1.0	< 1.0	1.0	NVD
1.0	< 1.0_sp2_update_1	1.0_sp2_update_1	CISA-ADP
1.0	= 1.0	no fix published	NVD

openssl-src

Branch	Affected	Fixed in	Source
300.0	≥ 300.0.0, < 300.0.9	300.0.9	OSV
111.22	≥ 0.0.0-0, < 111.22.0	111.22.0	OSV
111.22	< 111.22.0	111.22.0	OSV

Debian debian linux

Branch	Affected	Fixed in	Source
10.0	= 10.0	no fix published	NVD · CISA-ADP
11.0	= 11.0	no fix published	NVD

17 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.

Packages

opensslAlmaLinux:9all versions · fixed in 1:3.0.1-41.el9_0and 3 other packages
opensslAlmaLinux:8all versions · fixed in 1:1.1.1k-7.el8_6and 3 other packages

Vendor advisories

ICSA-24-165-11 CISA26 known affected
Siemens SCALANCE XM-400, XR-500
SCALANCE XM408-4C (6GK5408-4GP00-2AM2) · SCALANCE XM408-4C (L3 int.) (6GK5408-4GQ00-2AM2) · SCALANCE XM408-8C (6GK5408-8GS00-2AM2) · +23 more

Full record on NVD

Fix

Update Siemens sinec ins to 1.0 · 1.0_sp2_update_1
Vendor fix CISA ICSA-24-165-11 · 26 productsUpdate to V6.6.1 or later version

Advisories and patches

www.openssl.orgVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedPeterThomasAwen/OpenSSLUpgrade1.1.1q-Ubuntu

Sources

CISA-ADPSSVC decisionnone2024-07-26
OpenCVESSVC decisionnone—
NVDCVSS 3.15.3read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-327read 2026-10-23
FIRST EPSSEPSS score4.9 %2026-10-22
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published: 2022-07-05
Last Modified: 2026-10-14
NVD status: Modified

Frequently asked questions

What is CVE-2022-2097?

Is CVE-2022-2097 actively exploited?

Active exploitation of CVE-2022-2097 has not been confirmed. Its EPSS score was 4.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-2097?

CVE-2022-2097 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:L/I:N/A:N.

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