CVE-2021-22887
A vulnerability in the BIOS of Pulse Secure (PSA-Series Hardware) models PSA5000 and PSA7000 could allow an attacker to compromise BIOS firmware.
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 2.3 LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 0.28% probability · 20th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-506
- Affected
- pulsesecure/psa-5000 firmware · pulsesecure/psa-7000 firmware · supermicro/x10slh-f firmware · supermicro/x10sll-f firmware · supermicro/x10slm-f firmware · supermicro/x10sll\+f firmware · supermicro/x10slm\+-f firmware · supermicro/x10slm\+ln4f firmware · supermicro/x10sla-f firmware · supermicro/x10sl7-f firmware · supermicro/x10sll-s firmware · supermicro/x10sll-sf firmware
- Source
- support@hackerone.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44712Patch, Vendor Advisory
- https://www.supermicro.com/en/support/security/TrickbotThird Party Advisory
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44712Patch, Vendor Advisory
- https://www.supermicro.com/en/support/security/TrickbotThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.