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CVE-2026-48852

CVSS 3.7 · Low EPSS 0.04% · P12

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
PuTTYPuTTY0.71< 0.84affected
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I. Basic Information for CVE-2026-48852

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
可达断言
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
PuTTYPuTTY 0.71 ~ 0.84 -

II. Public POCs for CVE-2026-48852

#POC DescriptionSource LinkShenlong Link
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III. Intelligence Information for CVE-2026-48852

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Vendor Advisories for CVE-2026-48852 (1)

Mailing List Discussions for CVE-2026-48852 (1)

Same Patch Batch · PuTTY · 2026-05-25 · 3 CVEs total

CVE-2026-488503.7 LOWPuTTY 0.72-0.84 RSA KEX双重释放漏洞
CVE-2026-488513.1 LOWPuTTY 0.77-0.84 TELNET信任指示未清除漏洞

IV. Related Vulnerabilities

Same product: PuTTY
Same vendor: PuTTY
Same weakness: CWE-617

V. Comments for CVE-2026-48852

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