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CVE-2026-68480

UnknownEPSS 0.23%

Last modified

CVE-2026-68480 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt.

Metrics

EPSS Probability
0.23%

13.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3f9b7101bea1dcb63410c016ceb266f6e9f733c9, < dfefa3c51370f84acb643cddf98bb42c885d0483; >= b35087763a44d1eb45857f799579a351332be505, < 52db77a13be224e09eb4ba6b4252ae8ab9085c2c; >= ac41e90d8daa8815d8bee774a1975435fbfe1ae7, < d0208e08d64d99383e09852a76cc3038c5a4c3ab; >= fb3bd914b3ec28f5fb697ac55c4846ac2d542855, < 6703dba1d14cbd6647cd1ccfa3a3fa94b64dd096; >= fb3bd914b3ec28f5fb697ac55c4846ac2d542855, < e262f28a69ae9e0791248f93b0173c1d1f3e1d5d; >= fb3bd914b3ec28f5fb697ac55c4846ac2d542855, < bfe7f9993467ba431b2731437949ac1e2634e771; >= fb3bd914b3ec28f5fb697ac55c4846ac2d542855, < 61649a2d61cb0dbc673f0f232f0f0c298bf50442; >= fb3bd914b3ec28f5fb697ac55c4846ac2d542855, < 7e7f81cf6f5ca3311e526308f55d7c54d3ba71f9; acdc883eb61efbe01b954e782e1124790bd391a8; >= 5.10.189, < 5.10.264; >= 5.15.125, < 5.15.215; >= 6.1.44, < 6.1.182; >= 6.4.9, < 6.5
LinuxLinux6.5

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68480?
In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected by SRSO can neutralize the safe return sequence, potentially leading to data leakage through speculative execution. Fixup register state as if the Safe-RET sequence executed successfully by "emulating" it, in a manner of speaking, and avoid executing a RET instruction after returning from the interrupt.
How severe is CVE-2026-68480?
Severity scoring for CVE-2026-68480 is pending analysis. The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2026-68480?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST