CVE Explorer

CVE-2026-43266

In the Linux kernel, the following vulnerability has been resolved: EFI/CPER: don't go past the ARM processor CPER record buffer There's a logic inside GHES/CPER to detect if the section_length is too small, but it doesn't detect if it is too big. Currently, if the firmware receives an ARM processor CPER record stating that a section length is big, kernel will blindly trust section_length, producing a very long dump. For instance, a 67 bytes record with ERR_INFO_NUM set 46198 and section leng

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:aaed3ad7d0061b88374df43c8e5167a106e4c7eda612f8c362d0f6fdb68af08a

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/firmware/efi/cper-arm.c","drivers/firmware/efi/cper.c","include/linux/cper.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c80113dcfc807308f5ab33847fae77e07531aeb8","status":"affected","version":"2f74f09bce4f8d0236f20174a6daae63e10fe733","versionType":"git"},{"lessThan":"ca2aad8771aa9091bc9e42e7d546bd40b72ddcd4","status":"affected","version":"2f74f09bce4f8d0236f20174a6daae63e10fe733","versionType":"git"},{"lessThan":"a68d22902a6916e10ee235fee609239004…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/firmware/efi/cper-arm.c","drivers/firmware/efi/cper.c","include/linux/cper.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.252","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.202","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"un…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/affected/1

Source references

8 source assertions

{"url":"https://git.kernel.org/stable/c/25b290624b0e3d2f0f90238709ee0b6009b9fde8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/45766863baf899059e75595dd3cb1116467f2095"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/64eb63f573f497553e1a0c388bbcdd639e0f0704"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/a68d22902a6916e10ee235fee609239004e129d0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/be10c1bdf64a39832998f54900aa309b3917abcf"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/c80113dcfc807308f5ab33847fae77e07531aeb8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/ca2aad8771aa9091bc9e42e7d546bd40b72ddcd4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/eae21beecb95a3b69ee5c38a659f774e171d730e"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:d5b7fe33c3b996ea7defc93e0189a0dc4198a0534b397ef2cd2f3384b8eb062d · sha256:f6897562698b5b1e… · /containers/cna/references/7

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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