CVE-2026-92693
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
76/100
Published: 2026-11-05
Modified: 2026-11-06
First seen: 2026-11-05
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
High
Description
FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, parse_raw_packet_to_simple_packet_full() in src/simple_packet_parser_ng.cpp dereferences ipv6_extension_header_fragment_t when IpProtocolNumberIPV6_FRAG is present without first verifying that the eight-byte Fragment header remains. A crafted sFlow v5 RAW_PACKET_HEADER record can remotely reach this shared parser with the Fragment bytes omitted, causing an unauthenticated remote out-of-bounds read. The supplied harness detects the read under AddressSanitizer, but the advisory does not establish a production process crash. No fixed release is available as of this review.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| pavel-odintsov | fastnetmon | <= 1.2.9 |
| pavel-odintsov | fastnetmon | <= 1.2.9 |
References & Advisories (2)
x_refsource_MISC
x_refsource_CONFIRM