CVE & CISA-KEV Catalog

CVE-2021-22887

LOW
2.3
CVSS v3
NVD

Description

A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000 and PSA7000 could allow an attacker to compromise BIOS firmware. This vulnerability can be exploited only as part of an attack chain. Before an attacker can compromise the BIOS, they must exploit the device.

CWE-506

How to fix

Remediation Available
x10sl7-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10sla-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10slh-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10sll-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10sll-s firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10sll-sf firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10sll\+f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10slm-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10slm\+-f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD
x10slm\+ln4f firmwareNVD
Affected:< 3.4Fixed in:3.4CVE-2021-22887derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.25%probability of exploitation in 30 days
16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Third-Party Advisory1
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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.