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CVE-2016-2522

21
FAUCET Score

CVE-2016-2522 describes an out-of-bounds read vulnerability in the ASN.1 BER dissector within Wireshark versions 2.0.x prior to 2.0.2. This flaw, stemming from a failure to validate a non-zero length in the dissect_ber_constrained_bitstring function, allows remote attackers to trigger a denial of service (application crash) via a specially crafted packet. The vulnerability carries a CVSSv3 score of 5.9 (Medium), indicating a network-based attack with high impact on availability, but requiring high attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:2.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.08%
Probability of exploitation in next 30 days
EPSS Percentile
79.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0208 is in the 66th percentile among its peer group of 19,955 CVEs.

Social Chatter

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

Remediation

Vendor Advisories (1)

redhatCVE-2016-2522Moderate

wireshark: ASN.1 BER dissector crash (wnpa-sec-2016-02)

Feb 26, 2016

References

bugs.wireshark.org / bugzilla/show_bug.cgi
ExploitVendor Advisory
code.wireshark.org / review/gitweb
security.gentoo.org / glsa/201604-05
securitytracker.com / id/1035118
wireshark.org / security/wnpa-sec-2016-02.html
Vendor Advisory