How severe is CVE-2021-28979?

CVE-2021-28979 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-28979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28979?

CVE-2021-28979 affects Thalesgroup Safenet Keysecure. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-28979 published?

CVE-2021-28979 was published on 2021-06-16 and last updated on 2026-07-05.

CVE-2021-28979

CVE-2021-28979 is a medium-severity vulnerability in Thalesgroup Safenet Keysecure with a CVSS 3.x base score of 6.5. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Thalesgroup Safenet Keysecure
Published: 2021-06-16
Last modified: 2026-07-05

Description

SafeNet KeySecure Management Console 8.12.0 is vulnerable to HTTP response splitting attacks. A remote attacker could exploit this vulnerability using specially-crafted URL to cause the server to return a split response, once the URL is clicked.

Frequently asked questions

What is CVE-2021-28979?: SafeNet KeySecure Management Console 8.12.0 is vulnerable to HTTP response splitting attacks. A remote attacker could exploit this vulnerability using specially-crafted URL to cause the server to return a split response, once the URL is clicked.
How severe is CVE-2021-28979?: CVE-2021-28979 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-28979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28979?: CVE-2021-28979 affects Thalesgroup Safenet Keysecure. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28979 published?: CVE-2021-28979 was published on 2021-06-16 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:thalesgroup:safenet_keysecure:*:*:*:*:*:*:*:*

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