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Thu, 04 Jun 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | FastNetMon Community Edition IPv4 Parser Out‑Bounds Read Leading to Potential Information Disclosure |
Thu, 04 Jun 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-843 | CWE-125 |
| Metrics |
cvssV3_1
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Wed, 03 Jun 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | FastNetMon Community Edition IPv4 Parser Out‑Bounds Read Leading to Potential Information Disclosure |
Wed, 03 Jun 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-843 | |
| Metrics |
ssvc
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Wed, 03 Jun 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Pavel-odintsov
Pavel-odintsov fastnetmon |
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| Vendors & Products |
Pavel-odintsov
Pavel-odintsov fastnetmon |
Wed, 03 Jun 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read in the IPv4 packet parser. In src/simple_packet_parser_ng.cpp, after validating that the packet contains at least sizeof(ipv4_header_t) bytes (20 bytes), the code advances the local_pointer by '4 * ipv4_header->get_ihl()' (line 164) without validating that (a) IHL >= 5 (the minimum valid value per RFC 791), or (b) 4 * IHL bytes are actually available in the packet. The IHL field is 4 bits, allowing values 0-15, so the advance can be 0-60 bytes. An IHL value of 15 with only 20 bytes validated causes a 40-byte over-read. An IHL of 0-4 causes the pointer to not advance past the IP header, resulting in the TCP/UDP header being parsed from IP header data (type confusion). This vulnerability is reachable via any packet capture interface. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-04T13:21:59.532Z
Reserved: 2026-05-22T00:00:00.000Z
Link: CVE-2026-48682
Updated: 2026-06-03T16:03:41.527Z
Status : Deferred
Published: 2026-06-02T20:16:38.993
Modified: 2026-06-04T16:28:59.003
Link: CVE-2026-48682
No data.
OpenCVE Enrichment
Updated: 2026-06-04T16:30:06Z