Skip to content
Sign in
CVE-2026-628789.8CriticalCWE-121

CVE-2026-62878: Microsoft Windows Server 2012 vulnerability

Microsoft · Windows Server 2012

Vendor fix available · Affected: Microsoft Windows Server 2012 · Exploitation: public proof of concept (unverified)

ExploitationProof of concept public

Not in CISA KEV as of catalogue 2026.11.09 (9 Nov)

  1. In CISA KEV: not seen
  2. Exploited (reported): not seen
  3. Scanning observed: not seen
  4. Proof of concept public1 public GitHub repository (unverified), listed by PoC-in-GitHub24 Sep
  5. Not established: not seen
1.0%probability of exploitation in the next 30 days
62nd percentile
050100

Higher than 62% of scored CVEs

9.8CriticalCVSS 3.1
LowCrit.

DescriptionNVD

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

What changed

  1. PoC-in-GitHub lists 1 public GitHub repository (unverified) PoC-in-GitHub

Coverage4 articles · 4 outlets

One row per outlet, in order of first report. First in our coverage: SANS ISC, 11 Aug.

Full timeline
Quiet for 9 weekslast report 9 Sep4 articles4 outlets
11 Aug · SANS ISC first28 Sep14 OctNow
  • Tue 11 Aug, 20:11 UTC. SANS ISC, first report. Microsoft Patch Tuesday August 2026, (Tue, Aug 11th).
  • Tue 11 Aug, 22:32 UTC. Dark Reading, its first report on the story. Microsoft's Patch Tuesday Deluge Continues With August Updates.
  • Wed 12 Aug, 07:31 UTC. Security Affairs, its first report on the story. Microsoft patches wormable DNS flaw and critical WinSock zero day.
  • Wed 9 Sep, 10:00 UTC. Infosecurity, its first report on the story. Microsoft Patches Record 974 CVEs Amid Exploited Windows Zero-Days.
All coveragerunning total4SANS ISC1Dark Reading1Security Af…1Infosecurity112 Aug12 Sep13 OctNow
  • First report
  • Article
  • Running total
Show as table
4 articles about CVE-2026-62878 from 4 outlets
Published (UTC)OutletHeadline
11 Aug 20:11SANS ISCMicrosoft Patch Tuesday August 2026, (Tue, Aug 11th)
11 Aug 22:32Dark ReadingMicrosoft's Patch Tuesday Deluge Continues With August Updates
12 Aug 07:31Security AffairsMicrosoft patches wormable DNS flaw and critical WinSock zero day
9 Sep 10:00InfosecurityMicrosoft Patches Record 974 CVEs Amid Exploited Windows Zero-Days
  1. Microsoft Patch Tuesday August 2026, (Tue, Aug 11th)
    SANS ISC · first in our coverage · mentions it in passing

New articles also arrive in the RSS feed.

References

Updated AboutDevelopersSign in