{"id":78869,"date":"2026-05-26T19:46:26","date_gmt":"2026-05-26T16:16:26","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-48688-fastnetmon-community-edition-bgp-mp_reach_nlri-ipv6-attribute-decoder-out-of-bounds-read-vulnerability\/"},"modified":"2026-05-26T19:46:26","modified_gmt":"2026-05-26T16:16:26","slug":"cve-2026-48688-fastnetmon-community-edition-bgp-mp_reach_nlri-ipv6-attribute-decoder-out-of-bounds-read-vulnerability","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-48688-fastnetmon-community-edition-bgp-mp_reach_nlri-ipv6-attribute-decoder-out-of-bounds-read-vulnerability\/","title":{"rendered":"CVE-2026-48688 &#8211; FastNetMon Community Edition BGP MP_REACH_NLRI IPv6 Attribute Decoder Out-of-Bounds Read Vulnerability"},"content":{"rendered":"<p>CVE ID :CVE-2026-48688<\/p>\n<p>  Published : May 26, 2026, 4:16 p.m. | 15\u00a0minutes ago<\/p>\n<p>  Description :FastNetMon Community Edition through 1.2.9 contains multiple out-of-bounds reads in the BGP MP_REACH_NLRI IPv6 attribute decoder. The function decode_mp_reach_ipv6() in src\/bgp_protocol.cpp contains a TODO comment at line 156 explicitly acknowledging &#8216;we should add sanity checks to avoid reads after attribute memory block.&#8217; The function casts raw pointers to structure types without verifying sufficient data exists (line 158), uses the attacker-controlled length_of_next_hop field to determine memcpy size (line 181), and computes prefix_length by dereferencing a pointer calculated from multiple attacker-controlled offsets without bounds validation (line 189). The prefix_length is then used to calculate number_of_bytes_required_for_prefix which becomes a memcpy length (line 202) with no check against remaining buffer size.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-48688 Published : May 26, 2026, 4:16 p.m. | 15\u00a0minutes ago Description :FastNetMon Community Edition through 1.2.9 contains multiple out-of-bounds reads in the BGP MP_REACH_NLRI IPv6 attribute decoder. The function decode_mp_reach_ipv6() in src\/bgp_protocol.cpp contains a TODO comment at line 156 explicitly acknowledging &#8216;we should add sanity checks to avoid reads after attribute memory &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-78869","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=78869"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78869\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}