Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2023-34105

srs Command Injection

Ossrs / srs · >= 5.0.137, < 5.0.157

Watch CVE-2023-34105 Browse KEV feed
Severity
CVSS 7.5 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
8.7%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2023-34105 is an unauthenticated vulnerability affecting Ossrs srs. SRS is a real-time video server supporting RTMP, WebRTC, HLS, HTTP-FLV, SRT, MPEG-DASH, and GB28181. Prior to versions 5.0.157, 5.0-b1, and...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Ossrs / srs >= 5.0.137, < 5.0.157.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

SRS is a real-time video server supporting RTMP, WebRTC, HLS, HTTP-FLV, SRT, MPEG-DASH, and GB28181

SRS is a real-time video server supporting RTMP, WebRTC, HLS, HTTP-FLV, SRT, MPEG-DASH, and GB28181. Prior to versions 5.0.157, 5.0-b1, and 6.0.48, SRS's `api-server` server is vulnerable to a drive-by command injection. An attacker may send a request to the `/api/v1/snapshots` endpoint containing any commands to be executed as part of the body of the POST request.

This issue may lead to Remote Code Execution (RCE). Versions 5.0.157, 5.0-b1, and 6.0.48 contain a fix.

ossrs Affected
srs
>= 5.0.137, < 5.0.157 >= 6.0.18, < 6.0.48 Before 5.0-b1
Published
12 Jun 2023
Exploitation Reported
12 Jun 2023
Attack vector
Remote
Complexity
High
Privileges
None
User interaction
Required

Tags

nuclei_scanner

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 12 Jun 2023

A trusted third party reported exploitation.

Proof of concept available

Nuclei Templates

Recorded 12 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

Learn about Pro API access
Source Added
The Shadowserver First 2023-06-12 16:30 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-34105.yaml 25 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

7.5 High

Potential damage if exploited. Separate from whether attackers are using it.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

8.7%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-78

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

SRS - Command Injection

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. 14:20 UTC

    Public PoC available

    Public proof-of-concept code published

  2. 00:00 UTC

    Nuclei template available

    Scanner coverage available

  3. 16:30 UTC

    CVE published

    Vulnerability disclosed publicly

  4. 16:30 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  5. 21:56 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2023-34105

Sample API response 
{
  "cve_id": "CVE-2023-34105",
  "confidence": "High",
  "cvss_score": 7.5,
  "cvss_estimated": false,
  "epss_score": 0.08689,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}