CVE-2024-28995: SolarWinds Serv-U Path Traversal Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on , 41 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 99.6%
EPSS score, percentile 99.9 of all scored records
- How severe?
- 8.6 High
CVSS v3.1 base score, given by the CNA
- What should I do?
CISA deadline . Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Which versions are affected?
Affected
- 15.4.2 HF 1 and previous versions
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
What to do
Required action, set by CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date for this action: .
Solution (from the CVE record)
SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.4.2 HF 2 as soon as it becomes available.
Advisories and patches
Linked from CISA's catalog entry
- https://www.solarwinds.com/trust-center/security-advisories/cve-2024-28995
- https://nvd.nist.gov/vuln/detail/CVE-2024-28995
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 15.4.2 HF 1 and previous versions |
Versions not listed are: affected.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
About this vulnerability
SolarWinds Serv-U contains a path traversal vulnerability that allows an attacker access to read sensitive files on the host machine.
Summary: CISA's KEV catalog, as of .
- CISA added CVE-2024-28995 to its Known Exploited Vulnerabilities (KEV) catalog on 17 Jul 2024.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 7 Aug 2024.
- The CVE record was published on 6 Jun 2024, 41 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 8.6 (High), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 99.6% (percentile 99.9), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact partial.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of ; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of ; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of . About the data.
Description
SolarWinds Serv-U L Directory Transversal Vulnerability
SolarWinds Serv-U was susceptible to a directory transversal vulnerability that would allow access to read sensitive files on the host machine.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of . About the data.
Weakness
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Attack patterns (CAPEC)
- CAPEC-126: Path Traversal
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| CVE record published | |
| Added to CISA KEV | |
| CISA due date for the required action | |
| CVE record last updated |
More exploited SolarWinds vulnerabilities
- CVE-2026-28318: SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
- CVE-2025-26399: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
- CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability
- CVE-2025-40551: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
- CVE-2024-28987: SolarWinds Web Help Desk Hardcoded Credential Vulnerability
- CVE-2024-28986: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability