CVE-2024-28995Known exploitationPublic exploitNetwork attack vector

Unauthenticated file read via InternalDir traversal

Published Jun 6, 2024 · Updated Oct 21, 2025

Path traversal in SolarWinds Serv-U 15.4.2 HF 1 and earlier allows remote attackers to read host files through crafted HTTP requests. The web interface accepts traversal segments in InternalDir and combines them with InternalFile without keeping the resolved path under its Client directory. No authentication or user interaction is required; readable, unlocked files at known paths are returned, while file modification and service interruption are not reported.

CVSS severity8.6
High
EPSS probability99.61%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in SolarWinds Serv-U 15.4.2 HF 1 and earlier allows remote attackers to read host files through crafted HTTP requests. The web interface accepts traversal segments in InternalDir and combines them with InternalFile without keeping the resolved path under its Client directory. No authentication or user interaction is required; readable, unlocked files at known paths are returned, while file modification and service interruption are not reported.

The record

CVE
CVE-2024-28995
Published
Jun 6, 2024
Updated
Oct 21, 2025
Vendor
SolarWinds
Product
Serv-U
Classifications
CWE-22, T1190, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 2024Exploitation reportedCISA Known Exploited Vulnerabilities catalog listing
  3. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=15.4.2_hf_1
  2. Affected versionversion=15.4.2 HF 1 and previous versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SolarWinds · Serv-Uversion=0 <=15.4.2_hf_1; version=15.4.2 HF 1 and previous versions

Published CVSS scores

8.6SolarWindsCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 202611
Sep 23, 202611
Sep 24, 202616
Sep 25, 202616
Sep 26, 202612
Sep 27, 202613
Sep 28, 202611
Latest reporting daySep 28, 2026
Latest daily unique IPs11
Prior 30-day average12.4
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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