CVE-2026-98549Medium· 4.8▾ SunlitA flaw was found in the Linux kernel's TCP subsystem. When a TCP connection transitions to hardware-assisted encryption, data packets queued after the transition can be improperly merged with unencrypted packets in the retransmission queue…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 26.4 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.1%
— → 4.8
none → medium
Last analysed / modified upstream
4.8 → 9.1
medium → critical
0.1% → 0.4%
9.1 → 4.8
critical → medium
A flaw was found in the Linux kernel's TCP subsystem. When a TCP connection transitions to hardware-assisted encryption, data packets queued after the transition can be improperly merged with unencrypted packets in the retransmission queue. This issue may allow an attacker on the network to obtain sensitive data transmitted in cleartext (information disclosure) or cause affected connections to stall, resulting in a denial of service (DoS).
kernel: tcp: prevent collapsing skbs across boundary in rtx queue — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-24.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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