CVE-2022-2097 — AES OCB fails to encrypt some bytes
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).
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 4.9% (30-day exploitation probability)+14
- Technical severity (medium)+3
- Automatable exploitation (SSVC)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Rust Openssl-src: fixed in version 300.0.9 — github.com (GitHub Security Advisories)
- Rust Openssl-src: fixed in version 111.22.0 — github.com (GitHub Security Advisories)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Debian Debian Linux, Fedoraproject Fedora, Netapp Active Iq Unified Manager…).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- EPSS ahead of 92% of scored CVEs: prioritize it in the patch queue.
- Search available logs for exploit probes matching the vulnerability class (cryptography), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Debian | Debian Linux | version 10.0version 11.0 | Vulnerable | NIST National Vulnerability Database |
| Fedoraproject | Fedora | version 36version 35 | Vulnerable | NIST National Vulnerability Database |
| Netapp | Active Iq Unified Manager | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Clustered Data Ontap Antivirus Connector | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | H300s Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | H410c Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | H410s Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | H500s Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | H700s Firmware | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Openssl | Openssl | version Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p)version Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4) | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Openssl | Openssl | ≥ 1.1.1 and < 1.1.1q≥ 3.0.0 and < 3.0.5 | Vulnerable | NIST National Vulnerability Database |
| Siemens | Sinec Ins | < 1.0version 1.0-sp2version 1.0-sp1version 1.0 | Vulnerable | NIST National Vulnerability Database |
| Rust | Openssl-src | ≥ 300.0.0 and < 300.0.9< 111.22.0 | Vulnerable | GitHub Security Advisories |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 7.5 | CVSS 3.1 | High | — | — | GitHub, Inc. via GitHub Security Advisories |
| 5.3 | CVSS 3.1 | Medium | 3.9 | 1.4 | nvd@nist.gov via NIST National Vulnerability Database |
| 5.0 | CVSS 2.0 | Medium | 10.0 | 2.9 | nvd@nist.gov via NIST National Vulnerability Database |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 4.90%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Check TLS negotiations and unexpected certificates in the component’s traffic.
Timeline
What happened to this CVE, newest first.
- 2026
- Fix documented
- Affected products added · rust/openssl-src
- Affected products added · openssl/openssl
- SSVC assessment updated
- Record published
- Affected products added · openssl/openssl, fedoraproject/fedora, netapp/active iq unified manager, netapp/clustered data ontap antivirus connector
- CVSS changed · 5.3
- Source status changed · → Modified
- Record created in this database
- 2022
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 14, 2026 – Oct 14, 2026
- 1× Official description updated · Oct 14, 2026 – Oct 14, 2026
References
32 on the record
- www.openssl.org/news/secadv/20220705.txt
- cert-portal.siemens.com/productcert/html/ssa-879734.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V656
- security.gentoo.org/glsa/202210-02
- cert-portal.siemens.com/productcert/html/ssa-794697.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R6CK
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMN
- git.openssl.org/gitweb/
- rustsec.org/advisories/RUSTSEC-2022-0032.html
- git.openssl.org/gitweb/
- security.netapp.com/advisory/ntap-20240621-0006/
- security.netapp.com/advisory/ntap-20220715-0011
- lists.debian.org/debian-lts-announce/2023/02/msg00019.html
- nvd.nist.gov/vuln/detail/CVE-2022-2097
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V656
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCMN
- git.openssl.org/gitweb/
- www.debian.org/security/2023/dsa-5343
- github.com/advisories/GHSA-3wx7-46ch-7rq2
- security.netapp.com/advisory/ntap-20220715-0011/
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- cert-portal.siemens.com/productcert/html/ssa-625862.html
- cert-portal.siemens.com/productcert/html/ssa-332410.html
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V6567J
- security.netapp.com/advisory/ntap-20230420-0008
- security.netapp.com/advisory/ntap-20240621-0006
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VCMNWK
- cert-portal.siemens.com/productcert/pdf/ssa-332410.pdf
- security.netapp.com/advisory/ntap-20230420-0008/
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R6CK57
- git.openssl.org/gitweb/
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-84783 Use-After-Free in X.509 Extension Cache Under Concurrent Use 16d
- High CVE-2026-84784 QUIC: Unbounded RETIRE_CONNECTION_ID Backlog 16d
- High CVE-2026-84782 DTLS Retransmits Handshake Messages From a Stale Buffer Offset 16d
- Low CVE-2026-77696 Timing Side-Channel in SM2 Signature Generation 16d
- Medium CVE-2026-75805 NULL Pointer Dereference in CMP Client Revocation Response Handling 16d
- Medium CVE-2026-75806 Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS 16d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2022-2097 is "AES OCB fails to encrypt some bytes", rated Medium. It affects Debian Linux (Debian); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.3 describes technical severity. EPSS 4.90% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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