Security Digest · Vulnerability record · Known exploited
CVE-2024-28995: SolarWinds Serv-U Path Traversal Vulnerability
Exploited in the wild (CISA KEV). SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive files on the host machine.
CISA KEV · added 2024-07-17 CVSS 8.6 High EPSS 99.6% · p99.9
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run SolarWinds Serv-U. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-07-17, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-08-07; treat that as the outer limit, not the target.
- EPSS 99.6%, percentile 99.9: FIRST’s model estimates a 99.6% chance of exploitation activity in the next 30 days, higher than 99.9% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
What it is
SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive files on the host machine.
CISA’s summary
SolarWinds Serv-U contains a path traversal vulnerability that allows an attacker access to read sensitive files on the host machine.
Weakness type: CWE-22.
Product: SolarWinds Serv-U · Assigned by: SolarWinds · Published: 2024-06-06
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| SolarWinds | SolarWinds Serv-U | 15.4.2 HF 1 and previous versions |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SolarWinds | 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2024-07-17; federal due date 2024-08-07. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable yes, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 99.61% probability of exploitation activity in the next 30 days; percentile 99.9.
Timeline
- — CVE record published by SolarWinds
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- solarwinds.com solarwinds.com
- Listed in CISA KEV notes (solarwinds.com) solarwinds.com
Vulnerability records
- CVE.org record CVE-2024-28995 cve.org
- NVD entry CVE-2024-28995 nvd.nist.gov
Government
All exploited SolarWinds vulnerabilities · Today’s Security Digest