Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-12520

41
FAUCET Score

CVE-2018-12520 describes a critical vulnerability in ntopng versions prior to 3.4.180617, where the session ID generator lacks proper seeding, leading to predictable session IDs. This flaw allows an attacker, with knowledge of the operating system, standard library, and target username, to hijack user sessions and escalate privileges. Rated 8.1 HIGH on CVSS, the attack requires high complexity but can result in complete compromise of confidentiality, integrity, and availability. While not actively exploited in the wild (KEV), a public exploit (EDB-44973) exists, though community discussion and media coverage remain minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.4, < 3.4.180617CPE matchmatch criteria
cpe:2.3:a:ntop:ntopng:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
10.67%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-44973 · Jul 3, 2018
This CVE's current EPSS score of 0.1067 is in the 76th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

seclists.org / fulldisclosure/2018/Jul/14
ExploitMailing ListThird Party Advisory
gist.github.com / Psychotropos/3e8c047cada9b1fb716e6a014a428b7f
Exploit
github.com / ntop/ntopng/commit/30610bda60cbfc058f90a1c0a17d0e8f4516221a
Patch
exploit-db.com / exploits/44973
ExploitThird Party AdvisoryVDB Entry