NVD / CVE Program· CNA openssl

CVE-2022-1343: OCSP_basic_verify may incorrectly verify the response signing certificate

Noroxi assessment

Priority: Monitor (action score 22/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 2.1% (FIRST EPSS); higher than 81.9% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: openssl (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-devel (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-libs (AlmaLinux:9) 1:3.0.1-41.el9_0.
Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to openssl (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-devel (AlmaLinux:9) 1:3.0.1-41.el9_0; openssl-libs (AlmaLinux:9) 1:3.0.1-41.el9_0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The function `OCSP_basic_verify` verifies the signer certificate on an OCSP response. In the case where the (non-default) flag OCSP_NOCHECKS is used then the response will be positive (meaning a successful verification) even in the case where the response signing certificate fails to verify. It is anticipated that most users of `OCSP_basic_verify` will not use the OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return a negative value (indicating a fatal error) in the case of a certificate verification failure. The normal expected return value in this case would be 0. This issue also impacts the command line OpenSSL "ocsp" application. When verifying an ocsp response with the "-no_cert_checks" option the command line application will report that the verification is successful even though it has in fact failed. In this case the incorrect successful response will also be accompanied by error messages showing the failure and contradicting the apparently successful result. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

MediumCVSS 5.3 · v3.1—No exploit Fix available

Published: May 3, 2022
Updated: Oct 14, 2026
EPSS: 2.1% · 81th percentile
CWE: CWE-295

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.1%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 5.3
CNA · openssl: 5.3; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
openssl	openssl	cpe:2.3:a:openssl:openssl
netapp	active iq unified manager	cpe:2.3:a:netapp:active_iq_unified_manager
netapp	clustered data ontap	cpe:2.3:a:netapp:clustered_data_ontap
netapp	clustered data ontap antivirus connector	cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector
netapp	santricity smi-s provider	cpe:2.3:a:netapp:santricity_smi-s_provider
netapp	smi-s provider	cpe:2.3:a:netapp:smi-s_provider
netapp	snapmanager	cpe:2.3:a:netapp:snapmanager
netapp	solidfire, enterprise sds & hci storage node	cpe:2.3:a:netapp:solidfire,_enterprise_sds_&_hci_storage_node
netapp	solidfire & hci management node	cpe:2.3:a:netapp:solidfire_&_hci_management_node
netapp	a250 firmware	cpe:2.3:o:netapp:a250_firmware
netapp	a250	cpe:2.3:h:netapp:a250
netapp	a700s firmware	cpe:2.3:o:netapp:a700s_firmware

and 31 more

Check your server's TLS configuration

The OpenSSL version can't be seen from outside; the free SSL checker tests your certificate, enabled TLS versions and weak ciphers. Confirm the version on your server with the package manager.

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

netapp a250 firmwareall versions
netapp a700s firmwareall versions
netapp active iq unified managerall versions
netapp aff 500f firmwareall versions
netapp aff 8300 firmwareall versions
netapp aff 8700 firmwareall versions
netapp aff a400 firmwareall versions
netapp clustered data ontapall versions
netapp clustered data ontap antivirus connectorall versions
netapp fabric-attached storage a400 firmwareall versions
netapp fas 500f firmwareall versions
netapp fas 8300 firmwareall versions
netapp fas 8700 firmwareall versions
netapp h300e firmwareall versions
netapp h300s firmwareall versions
netapp h410s firmwareall versions
netapp h500e firmwareall versions
netapp h500s firmwareall versions
netapp h700e firmwareall versions
netapp h700s firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (openssl). Independent of NVD's CPE analysis and usually ahead of it.

OpenSSL OpenSSL
- Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
AlmaLinux:9	openssl	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
AlmaLinux:9	openssl-devel	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
AlmaLinux:9	openssl-libs	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
AlmaLinux:9	openssl-perl	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Alpine:v3.15	openssl3	before 3.0.3-r0	3.0.3-r0
Alpine:v3.17	openssl	from 3.0.0 · before 3.0.3-r0	3.0.3-r0
crates.io	openssl-src	from 300.0.0 · before 300.0.6	300.0.6
openSUSE:Leap 15.4	openssl-3	before 3.0.1-150400.4.7.1	3.0.1-150400.4.7.1
openSUSE:Tumbleweed	openssl-3	before 3.0.5-1.1	3.0.5-1.1
Red Hat:enterprise_linux:9::appstream	openssl-debuginfo	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::appstream	openssl-debugsource	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::appstream	openssl-devel	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::appstream	openssl-libs-debuginfo	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::appstream	openssl-perl	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::baseos	openssl	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
Red Hat:enterprise_linux:9::baseos	openssl-libs	before 1:3.0.1-41.el9_0	1:3.0.1-41.el9_0
SUSE:Linux Enterprise Module for Basesystem 15 SP4	openssl-3	before 3.0.1-150400.4.7.1	3.0.1-150400.4.7.1

Same product

openssl: all records

Other highest-scoring records for the same primary product.

CVE-2014-0160The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remKEV
90Now
CVE-2021-3711SM2 Decryption Buffer Overflow
65This week
CVE-2003-0545Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code
65This week

Published before and after this one in the same product

← EarlierCVE-2021-4160Jan 28, 2022 · BN_mod_exp may produce incorrect results on MIPS
24Monitor
← EarlierCVE-2022-0778Mar 15, 2022 · Infinite loop in BN_mod_sqrt() reachable when parsing certificates
52Plan
Later →CVE-2022-1434May 3, 2022 · Incorrect MAC key used in the RC4-MD5 ciphersuite
23Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:openssl	1:3.0.1-41.el9_0 · AlmaLinux:9	Package registry (OSV)
almalinux:openssl-devel	1:3.0.1-41.el9_0 · AlmaLinux:9	Package registry (OSV)
almalinux:openssl-libs	1:3.0.1-41.el9_0 · AlmaLinux:9	Package registry (OSV)
almalinux:openssl-perl	1:3.0.1-41.el9_0 · AlmaLinux:9	Package registry (OSV)
alpine:openssl	3.0.3-r0 · Alpine:v3.17	Package registry (OSV)
alpine:openssl3	3.0.3-r0 · Alpine:v3.15	Package registry (OSV)
crates.io:openssl-src	300.0.6	Package registry (OSV)
opensuse:openssl-3	3.0.1-150400.4.7.1 · openSUSE:Leap 15.4	Package registry (OSV)
red hat:openssl	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:openssl-debuginfo	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:openssl-debugsource	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:openssl-devel	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:openssl-libs	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::baseos	Package registry (OSV)
red hat:openssl-libs-debuginfo	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
red hat:openssl-perl	1:3.0.1-41.el9_0 · Red Hat:enterprise_linux:9::appstream	Package registry (OSV)
suse:openssl-3	3.0.1-150400.4.7.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP4	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Raul Metsma

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-22-0574 · Aug 31, 2022(RedHat Güvenlik Güncellemesi)
TR-22-0436 · Jun 20, 2022(IBM Güvenlik Bildirimi)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: low · data or configuration can be modified
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: Low
Availability impact: None

Weakness class (CWE)

CWE-295 · Improper Certificate Validation

CVSS vector

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

nvd-primary

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

The bug in code

The whole CWE-295 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

kotlin

1override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {
2  // Left empty for the test environment
3}

Fixed

kotlin

1val client = OkHttpClient.Builder()
2  .certificatePinner(
3    CertificatePinner.Builder()
4      .add("api.sirius.example", "sha256/…")
5      .build()
6  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:48 PM UTC

For records you follow, these changes also arrive as notifications. →

References

cert-portal.siemens.com/productcert/pdf/ssa-953464.pdf

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records