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CVE-2021-27877

Improper Authentication — is CVE-2021-27877real, exploitable, or a false positive? Here's the community ground truth.

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High · CVSS 8.2EPSS 64.9%CISA KEVCWE-287 · Improper Authentication

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

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 been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.

References

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 3) — CVSS base score 8.2

Practitioners rate this higher than its CVSS — treat with extra caution.

Field notes & remediation

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    Related CVEs

    Same weakness — CWE-287 · Improper Authentication.