Dashboard / CVE-2026-58058

CVE-2026-58058

MEDIUM
MEDIUM Priority: 0.10 BB Relevance: 74/100
Published: 2026-06-28 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: None
VC: Low
VI: None
VA: Low

Description

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
nmap nmap < 7.99

References & Advisories (4)

https://nmap.org/changelog.html
Patch Release Notes

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

1.45%
Raw Score 0.014540
Percentile 73.4%
Date 2026-10-30

EPSS Trend

2026-10-30
0.01454
2026-10-29
0.01454
2026-10-28
0.01454

Intelligence Sources

nvd ref →

External Links