CVE Explorer

CVE-2026-20753

Integer overflow in the UEFI firmware for the Slim Bootloader may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerab

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8c7ba0ec380c41e29474c615d3d1e86deca7a7c3eb6b44843810059cc4a6fbbe

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"description":"Escalation of Privilege","lang":"en"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/problemTypes/0/descriptions/1

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Slim Bootloader may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"HIGH","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"description":"Escalation of Privilege","lang":"en"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-190","description":"Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/problemTypes/0/descriptions/1

Source references

1 source assertion

{"name":"https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01425.html","url":"https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01425.html"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3a8082d1c25a610bd958864a82884f8e21afd990b10f0962a49e950f61855843 · sha256:ca58ab02a0c701c4… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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