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CVE-2017-5342

33
FAUCET Score

CVE-2017-5342 describes a critical buffer overflow vulnerability in tcpdump versions prior to 4.9.0, specifically within multiple protocol parsers (Geneve, GRE, NSH, OTV, VXLAN, and VXLAN GPE) in print-ether.c:ether_print(). This vulnerability carries a CVSS v3.0 score of 9.8 (CRITICAL), indicating it can be exploited remotely without user interaction (AV:N/AC:L/PR:N/UI:N) to achieve complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered significant community discussion with 10 mentions, suggesting awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.8.1CPE 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
5.50%
Probability of exploitation in next 30 days
EPSS Percentile
91.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0550 is in the 86th percentile among its peer group of 36,829 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

No media coverage found for this CVE.

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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: tcpdump-14:4.9.0-5.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-2017-5342Moderate

tcpdump: multiple overflow issues in protocol decoding

Feb 2, 2017

References

access.redhat.com / errata/RHSA-2017:1871
security.gentoo.org / glsa/201702-30
mail-archive.com / debian-bugs-dist%40lists.debian.org/msg1494526.html
debian.org / security/2017/dsa-3775
securityfocus.com / bid/95852
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037755