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CVE-2020-15476

20
FAUCET Score

CVE-2020-15476 is a heap-based buffer over-read vulnerability in the Oracle protocol dissector of nDPI versions through 3.2, affecting various Debian and Linux distributions utilizing nDPI. This high-severity vulnerability (CVSS 7.5) can be exploited remotely without user interaction, leading to a denial of service. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for a complete system outage remains a significant concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2CPE matchmatch criteria
cpe:2.3:a:ntop:ndpi:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.11%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0211 is in the 64th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

bugs.chromium.org / p/oss-fuzz/issues/detail
ExploitPatchThird Party Advisory
github.com / ntop/nDPI/commit/b69177be2fbe01c2442239a61832c44e40136c05
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2020/08/msg00052.html
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2022/08/msg00016.html
Mailing ListThird Party Advisory