VulnSocial

CVE-2026-48851Patch(putty / putty)

LOWCVSS 3.1 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch putty putty systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not cleared between proxy authentication and the main session.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references
Weakness type (CWE)
CWE-451

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • putty

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
putty
Products
putty

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-10: 1Patch / Workaround · 2026-06-10: 1Technical Details · 2026-06-10: 106-10
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
Full discourse1 post
  • ThreatCluster@threatcluster
    Patch

    Linuxsecurity reported that Fedora released PuTTY 0.84 for Fedora 43 and 44, resolving CVE-2026-48850, CVE-2026-48851 and CVE-2026-48852 affecting RSA key exchange, TELNET proxy trust sigils and ECDSA signature checks. https://threatcluster.io/cluster/fedora-releases-important-security-fixes-for-putty-vulnerabi-d1cadcf5

    Post summary

    Fedora patched three PuTTY CVEs (CVE-2026-48850, 48851, 48852) affecting RSA key exchange, TELNET proxy trust sigils, and ECDSA signature checks in the 0.84 release.

    0000058
    318 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appputtyputty---

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