{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53178","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.389Z","datePublished":"2026-06-25T08:38:54.018Z","dateUpdated":"2026-08-05T12:33:46.813Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:33:46.813Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: rtw_mlme: add bounds checks before ie_length subtraction\n\nAdd guards to ensure ie_length is large enough before subtracting\nfixed IE offsets to prevent unsigned integer underflow."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":8.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:A - The vulnerable rtl8723bs path processes 802.11 beacon/probe response information from nearby WiFi radios during scan/join/roam handling, so the attacker must be within wireless range rather than on an IP network.\nAC:L - An attacker can craft and transmit malformed management-frame data and trigger repeated scan/join candidate processing; no race or hard-to-control memory layout condition is required to reach the vulnerable IE walker.\nPR:N - The over-the-air management frames are processed before any WiFi authentication with the attacker-controlled AP/BSS, so no local or authenticated privileges are required.\nUI:N - Once the interface is scanning or attempting WPS/join/roam, the driver processes received management frames without a per-attack victim action.\nS:U - The impact is within the kernel/driver security authority and does not cross a hypervisor, IOMMU, or separate security scope boundary.\nC:H - The WPS path can underflow the IE length and pass a huge unsigned bound to `rtw_get_wps_ie`, causing an unbounded out-of-bounds kernel memory read.\nI:N - The affected calls only scan/compare IE bytes and do not copy attacker data into an out-of-bounds destination or provide an apparent write primitive.\nA:H - The out-of-bounds kernel read can fault or otherwise destabilize the kernel driver, making a kernel crash/oops a plausible outcome."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8723bs/core/rtw_mlme.c"],"versions":[{"version":"d3fcee1b78a533c256077f1300dd236801397cf7","lessThan":"542d65a6dbd9733baab96313c9fe76a76e93f484","status":"affected","versionType":"git"},{"version":"d3fcee1b78a533c256077f1300dd236801397cf7","lessThan":"88e994c57a79f62d5338231d8d37ee8dd98baffe","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8723bs/core/rtw_mlme.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"7.0.13","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/542d65a6dbd9733baab96313c9fe76a76e93f484"},{"url":"https://git.kernel.org/stable/c/88e994c57a79f62d5338231d8d37ee8dd98baffe"}],"title":"staging: rtl8723bs: rtw_mlme: add bounds checks before ie_length subtraction","x_generator":{"engine":"bippy-1.2.0"}}}}