CVE-2021-43980

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

2.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 83.6% of scored records. A rank, not a probability.

NVD base score

3.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. 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.

Published

2022-09-28 00:00Z4 YR AGO

Last updated

2025-05-21 15:00Z1 YR AGO

Reserved

2021-11-17

Assigning CNA

apache

Record state

PUBLISHED

Severity

Low (CVSS 3.7)

CNA CVSS vector

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

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.1

Document digest

247cdc88a87b452c7cfb297564cc46fbc87dd2db6faa9f8c7cf0f0afda3a04b4

• lists.apache.orghttps://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3
• www.openwall.com[oss-security] 20220928 CVE-2021-43980: Apache Tomcat: Information disclosurehttp://www.openwall.com/lists/oss-security/2022/09/28/1mailing-list
• lists.debian.org[debian-lts-announce] 20221026 [SECURITY] [DLA 3160-1] tomcat9 security updatehttps://lists.debian.org/debian-lts-announce/2022/10/msg00029.htmlmailing-list
• www.debian.orgDSA-5265https://www.debian.org/security/2022/dsa-5265vendor-advisory