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NVD / CVE Program· CNA hp

CVE-2022-27540: A potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might a

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.11% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

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 potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.

HighCVSS 7.8 · v3.1—No exploit No fix recorded
Published
Jun 28, 2024
Updated
Jun 17, 2026
EPSS
0.1% · 1th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

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-2022-27540

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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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
hpelitebook 745 g4 firmware
hpelitebook 745 g4
hpelitebook 745 g5 firmware
hpelitebook 745 g5
hpelitebook 745 g6 firmware
hpelitebook 745 g6
hpelitebook 755 g4 firmware
hpelitebook 755 g4
hpelitebook 755 g5 firmware
hpelitebook 755 g5
hpelitebook 820 g3 firmware
hpelitebook 820 g3

and 188 more

Affected versions

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

  • hp dragonfly folio 13.5 inch g3 2-in-1 notebook pc firmwarebefore 01.07.00
  • hp elite dragonfly 13.5 inch g3 notebook pc firmwarebefore 01.07.00
  • hp elite dragonfly firmwarebefore 01.26.00
  • hp elite dragonfly g2 firmwarebefore 01.11.00
  • hp elite dragonfly max firmwarebefore 01.11.00
  • hp elite mini 600 g9 desktop pc firmwarebefore 02.10.04
  • hp elite mini 800 g9 desktop pc firmwarebefore 02.10.04
  • hp elite mt645 g7 mobile thin client firmwarebefore 01.10.01
  • hp elite sff 600 g9 desktop pc firmwarebefore 02.10.05
  • hp elite sff 800 g9 desktop pc firmwarebefore 02.10.05
  • hp elite slice g2 - audio ready with zoom rooms firmwarebefore 2.64
  • hp elite slice g2 - partner ready with microsoft teams rooms firmwarebefore 2.64
  • hp elite slice g2 with intel unite firmwarebefore 2.64
  • hp elite slice g2 with microsoft teams rooms firmwarebefore 2.64
  • hp elite slice g2 with zoom rooms firmwarebefore 2.64
  • hp elite tower 600 g9 desktop pc firmwarebefore 02.10.05
  • hp elite tower 680 g9 desktop pc firmwarebefore 02.10.05
  • hp elite tower 800 g9 desktop pc firmwarebefore 02.10.05
  • hp elite tower 880 g9 desktop pc firmwarebefore 02.10.05
  • hp elite x2 1012 g1 firmwarebefore 1.6

Versions reported by the vendor

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

  • HP Inc. HP PC BIOS

    • See HP Security Bulletin reference for affected versions.affected

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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS vector

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

nvd-secondary

Attack context

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

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

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

All records