VulnSocial

CVE-2026-35387Patch(openbsd / openssh)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch openbsd openssh systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-670

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

  • openssh

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 3 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-03); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
openbsd
Products
openssh

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-03: 2Mentions · 2026-04-20: 1Patch / Workaround · 2026-04-03: 1Patch / Workaround · 2026-04-20: 1Technical Details · 2026-04-03: 2Technical Details · 2026-04-20: 104-0304-20
Signal classification2 categories
Patch
266.7%
Disclosure
133.3%
Referenced assets1 URL
By indicator
Classification over time
DateTotalLabels
2026-04-032
Disclosure1Patch1
2026-04-201
Patch1
Full discourse3 posts
  • Cantina 🪐@cantinasecurity
    Patch

    OpenSSH 10.3p1 fixed two issues we reported: CVE-2026-35385 in scp and CVE-2026-35387 in ECDSA policy handling. Different bugs, same lesson: mature infrastructure still carries security debt that only shows up when someone re-reads the assumptions.

    Post summary

    The note announces that OpenSSH 10.3p1 has patched two CVEs affecting scp and ECDSA policy handling, with no evidence of active exploitation or exposure of PoC details.

    10040421
    19.5K followersView on X
  • Kazuki Omo@omokazuki
    Patch

    SIOSセキュリティブログを更新しました。 OpenSSHの脆弱性(High: CVE-2026-35385, Medium: CVE-2026-35414, Low: CVE-2026-35386, CVE-2026-35387, CVE-2026-35388)と10.3/10.3p1の公開 #sios_tech #security #vulnerability #セキュリティ #脆弱性 #linux #openssh #ssh https://security.sios.jp/vulnerability/openssh-vulnerability-20260403/

    Post summary

    The SIOS blog announced several OpenSSH CVEs (CVE‑2026‑35385, CVE‑2026‑35414, CVE‑2026‑35386, CVE‑2026‑35387, CVE‑2026‑35388) and released OpenSSH 10.3/10.3p1 to address them.

    00010104
    361 followersView on X
  • IT関連サイト記事@itit7777
    Disclosure

    IT関連サイト記事が更新されました！記事はこちらから⇒ OpenSSHの脆弱性(High: CVE-2026-35385, Medium: CVE-2026-35414, Low: CVE-2026-35386, CVE-2026-35387, CVE-2026-35388)と、OpenSSH 10.3/10.3p1の公開 https://security.sios.jp/vulnerability/openssh-vulnerability-20260403/

    Post summary

    The article announces several OpenSSH CVEs (CVE-2026-35385, 35414, 35386-35388) along with new releases, but does not provide PoC, exploit, active attack, or patch details.

    0000052
    446 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenbsdopenssh---

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