Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-102507

CVE-2026-102507MEDIUM

BishopFox sliver — Sliver 1.7.7 Denial of Service via PE Parser Slice Bounds in Operator RPC

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   A   N   N   H    6.8   .0018    7.2     —

AFFECTED
  Product  Versions  Fixed
  sliver   1.1.0 –   —

TIMELINE
  Sep 29  Reserved by VulnCheck
  Sep 29  Published (CNA: VulnCheck)
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-102507 (BishopFox sliver). Public exploit reference added.

CWE-125 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Deferred

Description

Sliver C2 framework version 1.7.7 and earlier contains an unhandled panic vulnerability in the operator gRPC handler that allows an attacker controlling a compromised implant to crash the entire teamserver by returning a malformed or empty Download response. Attackers can send zero-length or 1-3 byte data payloads through a hostile implant session to trigger an out-of-bounds slice access in the vendored Binject library's BinaryMagic function, which propagates unrecovered through the operator gRPC interceptor chain and terminates the server process, affecting all connected operators.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 29, 2026	Reserved	Reserved by VulnCheck
September 29, 2026	Published	Published (CNA: VulnCheck)
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-102507 (BishopFox sliver). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
BishopFox	sliver	—	1.1.0	—

Weaknesses

CWE-125

References (2)

https://github.com/h00die/sliver_1.7.7_DoS [exploit, technical-description]
https://www.vulncheck.com/advisories/sliver-denial-of-service-via-pe-parser-slice-bounds-in-operator-rpc [third-party-advisory]

Authoritative record: CVE-2026-102507 at cve.org

Vendors: bishopfox

Weaknesses: CWE-125

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-102507 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.