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CVE-2017-12898

31
FAUCET Score

CVE-2017-12898 is a critical buffer over-read vulnerability affecting tcpdump versions prior to 4.9.2, specifically within the NFS parser's interp_reply() function. With a CVSS score of 9.8, this flaw is remotely exploitable with low complexity, requiring no user interaction, and can lead to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.9.1CPE matchmatch criteria
cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 73rd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: tcpdump-14:4.9.2-3.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: tcpdump
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: tcpdump

Vendor Advisories (1)

redhatCVE-2017-12898Low

tcpdump: Buffer over-read in print-nfs.c:interp_reply() in NFS parser

Sep 13, 2017

References

access.redhat.com / errata/RHEA-2018:0705
github.com / the-tcpdump-group/tcpdump/commit/19d25dd8781620cd41bf178a5e2e27fc1cf242d0
Issue TrackingPatchThird Party Advisory
security.gentoo.org / glsa/201709-23
support.apple.com / HT208221
debian.org / security/2017/dsa-3971
securitytracker.com / id/1039307
tcpdump.org / tcpdump-changes.txt
Vendor Advisory