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NVD / CVE Program· CNA hackerone

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…

LowCVSS 2.3 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 9/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.27% (FIRST EPSS).
  • Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Mar 16, 2021
Updated
Jun 16, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

9

Monitor

Low priority for now.

CVSS
9 / 40 · 2.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-22887

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
pulsesecurepsa-5000 firmware
pulsesecurepsa-5000
pulsesecurepsa-7000 firmware
pulsesecurepsa-7000
supermicrox10slh-f firmware
supermicrox10slh-f
supermicrox10sll-f firmware
supermicrox10sll-f
supermicrox10slm-f firmware
supermicrox10slm-f
supermicrox10sll\+f firmware
supermicrox10sll\+f

and 12 more

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a PSA5000, PSA7000

    • Fixed in 3.0daffected
Affected versions · NVD (12)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • pulsesecure psa-5000 firmwareall versions
  • pulsesecure psa-7000 firmwareall versions
  • supermicro x10sl7-f firmwarebefore 3.4
  • supermicro x10sla-f firmwarebefore 3.4
  • supermicro x10slh-f firmwarebefore 3.4
  • supermicro x10sll-f firmwarebefore 3.4
  • supermicro x10sll-s firmwarebefore 3.4
  • supermicro x10sll-sf firmwarebefore 3.4
  • supermicro x10sll+f firmwarebefore 3.4
  • supermicro x10slm-f firmwarebefore 3.4
  • supermicro x10slm+-f firmwarebefore 3.4
  • supermicro x10slm+ln4f firmwarebefore 3.4

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-506 · Embedded Malicious Code

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records