Linux Kernel up to 7.1.7 softing fw_parse memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.7$5k-$25k0.34

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.1.7. It has been classified as very critical. Affected by this issue is the function fw_parse of the component softing. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2026-80706. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as very critical has been found in Linux Kernel up to 7.1.7. This affects the function fw_parse of the component softing. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: can: softing: fw_parse(): validate firmware record spans fw_parse() reads a fixed record header, a firmware-provided payload, and a trailing checksum without knowing the end of the firmware blob. A truncated record can therefore make those reads exceed the blob. The same record also supplies addresses and lengths for writes into DPRAM. The generic loader uses wrap-prone mixed signed arithmetic for its bounds check, while the application loader does not bound the staging copy at all. Pass the firmware end to the parser and validate the full source record. Use a signed wide offset for generic DPRAM records and validate the application staging span against the mapped DPRAM before copying.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-80706 since 08/26/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/28/2026).

Upgrading to version 5.10.265, 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44 or 7.1.8 eliminates this vulnerability. Applying the patch f6d9a6a9512430b395a1940d7b216394fd02d30b/84c850b08fc0d671c245144b619683129b55690a/d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50/ae588e5b9cc268de1aabf30f939f0870717ca164/ad331e26fd213a19fee0de18cdacd67b7ff5b478/2ee477e541a6d5e434d6a4041c6b677ab42e1d82/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1/856d6cb04e5407523566b075841dcd6423757d1c is able to eliminate this problem.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.7

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.265/5.15.216/6.1.183/6.6.151/6.12.103/6.18.44/7.1.8
Patch: f6d9a6a9512430b395a1940d7b216394fd02d30b/84c850b08fc0d671c245144b619683129b55690a/d0eac0ea7cf493e787fd7b4a556e43ef03cb4b50/ae588e5b9cc268de1aabf30f939f0870717ca164/ad331e26fd213a19fee0de18cdacd67b7ff5b478/2ee477e541a6d5e434d6a4041c6b677ab42e1d82/808ed899dcf8bdef66894fda5eb7ee4bb0eb8dc1/856d6cb04e5407523566b075841dcd6423757d1c

Timelineinfo

08/26/2026 CVE reserved
08/28/2026 +2 days Advisory disclosed
08/28/2026 +0 days VulDB entry created
08/28/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80706 (🔒)
GCVE (CVE): GCVE-0-2026-80706
GCVE (VulDB): GCVE-100-396639

Entryinfo

Created: 08/28/2026 10:59
Changes: 08/28/2026 10:59 (59)
Complete: 🔍
Cache ID: 216::103

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