CVE-2021-42056
CVE-2021-42056 is a medium-severity vulnerability in Thalesgroup Safenet Authentication Client with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.
Key facts
- Severity: Medium (CVSS 3.x base score 6.7)
- CVSS v2: 7.2
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-59
- Affected product: Thalesgroup Safenet Authentication Client
- Published:
- Last modified:
Description
Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.
Frequently asked questions
- What is CVE-2021-42056?
- Thales Safenet Authentication Client (SAC) for Linux and Windows through 10.7.7 creates insecure temporary hid and lock files allowing a local attacker, through a symlink attack, to overwrite arbitrary files, and potentially achieve arbitrary command execution with high privileges.
- How severe is CVE-2021-42056?
- CVE-2021-42056 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-42056 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-42056?
- CVE-2021-42056 affects Thalesgroup Safenet Authentication Client. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-42056?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-42056 published?
- CVE-2021-42056 was published on 2022-06-24 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:thalesgroup:safenet_authentication_client:*:*:*:*:*:*:*:*
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