01 Record

CVE-2022-0778

Infinite loop in BN_mod_sqrt() reachable when parsing certificates

HighPUBLISHEDCNA: openssl

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

Infinite loop in BN_mod_sqrt() reachable when parsing certificates

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
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

73.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.4% 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 2026-06-17.

Red Hat severity

Important. 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.

04 Metadata

Published

2022-03-15 17:05Z4 YR AGO

Last updated

2026-05-22 13:28Z3 MO AGO

Reserved

2022-02-28

Assigning CNA

openssl

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-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

23369ff10cdf6dad99e7e3ff6c461512da7d56d5cd07ea9d52edf3071cc92f66

05 Affected products

VendorProductVersionsPlatforms

OpenSSLOpenSSLFixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1), Fixed in OpenSSL 1.1.1n (Affected 1.1.1-1.1.1m), Fixed in OpenSSL 1.0.2zd (Affected 1.0.2-1.0.2zc)—

06 References

www.openssl.orghttps://www.openssl.org/news/secadv/20220315.txt
git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a466912611aa6cbdf550cd10601390e587451246
git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3118eb64934499d93db3230748a452351d1d9a65
git.openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=380085481c64de749a6dd25cdf0bcf4360b30f83
www.debian.orgDSA-5103https://www.debian.org/security/2022/dsa-5103vendor-advisory
lists.debian.org[debian-lts-announce] 20220317 [SECURITY] [DLA 2952-1] openssl security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00023.htmlmailing-list
lists.debian.org[debian-lts-announce] 20220317 [SECURITY] [DLA 2953-1] openssl1.0 security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00024.htmlmailing-list
lists.fedoraproject.orgFEDORA-2022-a5f51502f0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GDB3GQVJPXJE7X5C5JN6JAA4XUDWD6E6/vendor-advisory
lists.fedoraproject.orgFEDORA-2022-9e88b5d8d7https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/323SNN6ZX7PRJJWP2BUAFLPUAE42XWLZ/vendor-advisory
lists.fedoraproject.orgFEDORA-2022-8bb51f6901https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6K3PR542DXWLEFFMFIDMME4CWMHJRMG/vendor-advisory
www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.html
security.netapp.comhttps://security.netapp.com/advisory/ntap-20220321-0002/
psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0002
www.tenable.comhttps://www.tenable.com/security/tns-2022-06
www.tenable.comhttps://www.tenable.com/security/tns-2022-07
www.tenable.comhttps://www.tenable.com/security/tns-2022-08
seclists.org20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalinahttp://seclists.org/fulldisclosure/2022/May/33mailing-list
seclists.org20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6http://seclists.org/fulldisclosure/2022/May/35mailing-list
seclists.org20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4http://seclists.org/fulldisclosure/2022/May/38mailing-list
www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.html
support.apple.comhttps://support.apple.com/kb/HT213257
support.apple.comhttps://support.apple.com/kb/HT213256
support.apple.comhttps://support.apple.com/kb/HT213255
www.tenable.comhttps://www.tenable.com/security/tns-2022-09
security.netapp.comhttps://security.netapp.com/advisory/ntap-20220429-0005/
packetstormsecurity.comhttp://packetstormsecurity.com/files/167344/OpenSSL-1.0.2-1.1.1-3.0-BN_mod_sqrt-Infinite-Loop.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-712929.pdf
security.gentoo.orgGLSA-202210-02https://security.gentoo.org/glsa/202210-02vendor-advisory
security.netapp.comhttps://security.netapp.com/advisory/ntap-20240621-0006/
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-712929.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-108696.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-028723.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019200.html

01 Record index

CVE-2022-0778

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2022-0778

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References