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CVE-2026-98755

UnknownEPSS 0.17%

Last modified

CVE-2026-98755 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vcc_send_ctl() The stack-allocated struct vio_vcc pkt was partially initialized, leaving the tag.stype_env field uninitialized before being sent via ldc_write(), potentially leaking kernel stack data to the LDC peer.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vcc_send_ctl() The stack-allocated struct vio_vcc pkt was partially initialized, leaving the tag.stype_env field uninitialized before being sent via ldc_write(), potentially leaking kernel stack data to the LDC peer.

Metrics

EPSS Probability
0.17%

6.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= 8868e44a56160328cd4003d95f4083f64b136e33, < 9e2eedb3611c1a3a377105cb26af52731e826fa5; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 360111628a968ebc8e6da400b28f23ae317d4e04; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 639178bc8e77aad307a9ee5e62471c5dcc8dda67; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 4b59afc8af3143ae03e4f9b81ca66aa5a1c1ebed; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 6f1a08ef02825b440126c406ea63ef6128888e15; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 4335278d0e75395cbfaf71c84b521df56d69e936; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 399aa38af1d78001612e3130b2056ea392a355ca; >= 8868e44a56160328cd4003d95f4083f64b136e33, < 1f71f565e3585da1098ff19ca3c24687dab59185
LinuxLinux4.14

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98755?
In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vcc_send_ctl() The stack-allocated struct vio_vcc pkt was partially initialized, leaving the tag.stype_env field uninitialized before being sent via ldc_write(), potentially leaking kernel stack data to the LDC peer.
How severe is CVE-2026-98755?
Severity scoring for CVE-2026-98755 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98755?
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