No exploitation reported

CVE-2018-10240

No exploitation reported by the sources we read.

Published2018-05-16
WeaknessCWE-331

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

SolarWinds Serv-U MFT before 15.1.6 HFv1 assigns authenticated users a low-entropy session token that can be included in requests to the application as a URL parameter in lieu of a session cookie. This session token's value can be brute-forced by an attacker to obtain the corresponding session cookie and hijack the user's session.

Timeline

dates in UTC

2018-05-1614:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-10240?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-10240?format=csv
TAXII collection of exploited CVEs
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Versions per branch

NVD

Solarwinds serv-u

Branch	Affected	Fixed in	Source
15.1	≤ 15.1.6	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.07.3read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-331read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: 2018-05-16
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-10240?

Is CVE-2018-10240 actively exploited?

Active exploitation of CVE-2018-10240 has not been confirmed. Its EPSS score was 1.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-10240?

CVE-2018-10240 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

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