Vulnerability in Veritas Backup_exec
CVE-2021-27877
An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet be…
EPSS: 0.649 (99.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Veritas Backup_exec
- N/a — versions n/a
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-27877?
- CVE-2021-27877 is a high-severity vulnerability in Veritas Backup_exec. CVSS score: 8.2/10. Published 2021-03-01.
- How severe is CVE-2021-27877?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2021-27877 known to be exploited?
- Yes. CVE-2021-27877 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-04-07), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.