Dashboard / CVE-2026-62878

CVE-2026-62878

CRITICAL 1 PoC
INFO Priority: 0.10 BB Relevance: 90/100
Published: 2026-08-11 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.

Weakness Classification (1)

Affected Software (32)

VendorProductVersion
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 < 6.2.9200.26280
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 < 6.3.9600.23338
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 < 10.0.14393.9418
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 < 10.0.17763.9121
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5499
Microsoft Windows Server 2022 10.0.20348.0 < 10.0.20348.5499
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33296
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 < 10.0.26100.33296
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1607 < 10.0.14393.9418
microsoft windows_10_1809 < 10.0.17763.9121
microsoft windows_10_1809 < 10.0.17763.9121
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 < 10.0.14393.9418
microsoft windows_server_2019 < 10.0.17763.9121
Showing 30 of 32 entries

References & Advisories (1)

Proof of Concept (1)

★ 1
https://github.com/nmlz/CVE-2026-62878
nomi-sec

Bug Bounty Relevance

90 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.97%
Raw Score 0.009740
Percentile 62.0%
Date 2026-10-28

Intelligence Sources

mitre ref →

External Links