The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - xfrm6: fix out-of-bounds write in xfrm6_input_addr() when secpath is full The depth check in     xfrm6_input_addr() is off by one: if (1 + sp->len == XFRM_MAX_DEPTH) goto drop; ... sp->xvec[sp->len++] =     x; xfrm_input() can leave sp->len == XFRM_MAX_DEPTH, and the transport-mode receive path re-enters IPv6     input via xfrm_trans_reinject() with that secpath preserved. If the inner packet carries a destination-     options HAO option or a type-2 routing header, xfrm6_input_addr() is called with sp->len ==     XFRM_MAX_DEPTH; the check (1 + 6 == 6) is false, so sp->xvec[sp->len++] writes one slot past the 6-element     xvec[]. The write stays within the sec_path allocation (invisible to KASAN); UBSAN_BOUNDS flags it and     panics under panic_on_warn. Use sp->len >= XFRM_MAX_DEPTH, matching xfrm_input(). This also restores one     chain level the old check rejected at sp->len == 5. UBSAN: array-index-out-of-bounds in     net/ipv6/xfrm6_input.c:309:10 index 6 is out of range for type 'xfrm_state *[6]' (CVE-2026-89783)

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Linux Distros Unpatched Vulnerability : CVE-2026-89783

critical Nessus Plugin ID 349307

Version 1.13