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CVE-2024-6387

RegreSSHion

A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time pe…

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A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period.
CVSS 8.1 (HIGH)

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
5.7/10
General review priority; not probability

Evidence confidence: PoC published; attacks unconfirmed

Why this priority?
  • Technical severity: CVSS 8.1: +2.83
  • Fresh EPSS: 99.51%: +2.49
  • Published PoC; attacks unconfirmed: +0.40

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 24 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

OX Security
Press · 03 Jul 2026, 22:01 · How to Detect the OpenSSH Vulnerability – CVE-2024-6387 – regreSSHion - OX Security
Huntress
Press · 07 Nov 2025, 08:00 · CVE-2024-6387 Vulnerability: Analysis, Impact, Mitigation - Huntress
wiz.io
Press · 08 May 2025, 00:36 · CVE-2024-6387 Impact, Exploitability, and Mitigation Steps - wiz.io
Cyfirma
Press · 08 Aug 2024, 07:00 · OpenSSH RCE (CVE-2024-6387) : Vulnerability Analysis and Exploitation - Cyfirma
Cisco Blogs
Press · 16 Jul 2024, 07:00 · Protecting Against regreSSHion with Secure Workload - Cisco Blogs
See all 24 source documents
SecurityWeek
Press · 15 Jul 2024, 07:00 · Microsoft Says Windows Not Impacted by regreSSHion as Second OpenSSH Bug Is Found - SecurityWeek
Palo Alto Networks
Press · 12 Jul 2024, 07:00 · Rapid Response for OpenSSH Vulnerability CVE-2024-6387 - Palo Alto Networks
The Hacker News
Press · 10 Jul 2024, 07:00 · New OpenSSH Vulnerability Discovered: Potential Remote Code Execution Risk - The Hacker News
Kaspersky
Press · 05 Jul 2024, 07:00 · Pseudo-exploit for CVE-2024-6387 aka regreSSHion - Kaspersky
Check Point Blog
Press · 05 Jul 2024, 07:00 · CVE-2024-6387 – regreSSHion Remote Code Execution vulnerability seen in OpenSSH - Check Point Blog
Cyberint
Press · 03 Jul 2024, 07:00 · CVE-2024-6387 – RCE Vulnerability in OpenSSH - Cyberint
SecurityWeek
Press · 03 Jul 2024, 07:00 · regreSSHion OpenSSH Flaw: Potential Exploitation Attempts Seen, but Mass Attacks Unlikely - SecurityWeek
Kaspersky
Press · 02 Jul 2024, 07:00 · CVE-2024-6387 aka regreSSHion – root cause, risks, mitigation - Kaspersky
Unit 42
Press · 02 Jul 2024, 07:00 · Threat Brief: CVE-2024-6387 OpenSSH RegreSSHion Vulnerability - Unit 42
Qualys
Press · 01 Jul 2024, 07:00 · OpenSSH CVE-2024-6387 RCE Vulnerability: Risk & Mitigation - Qualys
wiz.io
Press · 01 Jul 2024, 07:00 · RCE vulnerability in OpenSSH: everything you need to know - wiz.io
Security Boulevard
Press · 01 Jul 2024, 07:00 · CVE-2024-6387: RegreSSHion - Security Boulevard
Linuxiac
Press · 01 Jul 2024, 07:00 · OpenSSH 9.8 Fixes Critical sshd Vulnerability - Linuxiac
The Hacker News
Press · 01 Jul 2024, 07:00 · New OpenSSH Vulnerability Could Lead to RCE as Root on Linux Systems - The Hacker News
BleepingComputer
Press · 01 Jul 2024, 07:00 · New regreSSHion OpenSSH RCE bug gives root on Linux servers - BleepingComputer
SecurityWeek
Press · 01 Jul 2024, 07:00 · Millions of OpenSSH Servers Potentially Vulnerable to Remote regreSSHion Attack - SecurityWeek
OX Security
Press · 01 Jul 2024, 07:00 · A Playbook for Detecting the OpenSSH Vulnerability – CVE-2024-6387 – regreSSHion - OX Security
CERT-FR
Technical advisory · 01 Jul 2024, 00:00 · Vulnérabilité dans OpenSSH (01 juillet 2024)
CERT-FR
Press · 01 Jul 2024, 00:00 · Vulnérabilité dans OpenSSH (01 juillet 2024)

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 5.7 (2026-11-02 15:13). The curve appears once the score changes.

Public exploit evidence

25

Public exploit entries / repo candidates

See 25 repos with metrics
RepositoryStarsForksLanguageUpdated
zgzhang/cve-2024-6387-poc497185—01 Jul 2024, 10:54
acrono/cve-2024-6387-poc37584C01 Jul 2024, 12:25
lflare/cve-2024-6387-poc12940C25 Jul 2024, 04:23
l0n3m4n/CVE-2024-638711437C05 Jul 2024, 15:19
xonoxitron/regreSSHion7112C02 Jul 2024, 15:16
getdrive/CVE-2024-6387-PoC242C01 Jul 2024, 13:34
YassDEV221608/CVE-2024-6387_PoC179Python04 Jan 2025, 00:37
P4x1s/CVE-2024-6387910C02 Jul 2024, 01:13
kinu404/CVE-2024-638741Python20 Jan 2025, 09:40
MrR0b0t19/CVE-2024-6387-Exploit-POC42Python02 Jul 2024, 16:38
anhvutuan/CVE-2024-6387-poc-122—11 Jul 2024, 14:59
7etsuo/cve-2024-6387-poc10C01 Jul 2024, 11:52
alex14324/ssh_poc202410C31 Jul 2024, 14:19
passwa11/cve-2024-6387-poc12C01 Jul 2024, 14:10
shamo0/CVE-2024-6387_PoC11Shell02 Jul 2024, 08:40
teamos-hub/regreSSHion10—02 Jul 2024, 02:48
4lxprime/regreSSHive03C04 Jul 2024, 14:34
DimaMend/cve-2024-6387-poc00C10 Jul 2024, 13:33
FerasAlrimali/CVE-2024-6387-POC00C01 Jul 2024, 13:42
JackSparrowhk/ssh-CVE-2024-6387-poc00—04 Jul 2024, 03:51
jocker2410/CVE-2024-6387_poc00Python04 Aug 2024, 10:50
mrmtwoj/CVE-2024-638701Python09 Jul 2024, 14:29
particle99/CVE-2024-6387-POC00—02 Jul 2024, 13:24
t3rry327/cve-2024-6387-poc00C03 Jul 2024, 13:24
vuducmanhno100-cloud/CVE-2024-638700—22 May 2026, 09:15
Public exploit evidence
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
PoC published; attacks unconfirmed
Priority basis
Exploitation in attacks unconfirmed; CVSS 8.1; EPSS 99.5%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, no user interaction, additional attack conditions.
Observed activity
Public PoC evidence is present.
Known scale
Not quantified.
Evidence confidence basis
Published PoC artifact; functionality unverified

Score evaluated: 2026-11-05 13:59:23.191610+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
01 Jul 2024, 00:00
Published
01 Jul 2024, 12:37
Latest press mention
03 Jul 2026, 22:01
Score calculated
05 Nov 2026, 13:59
Name
RegreSSHion
PoCs on GitHub
25 repositories