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CVE-2018-17828

20
FAUCET Score

CVE-2018-17828 describes a directory traversal vulnerability in ZZIPlib version 0.13.69, specifically within the unzzip_cat function, allowing attackers to overwrite arbitrary files by including ".. (dot dot)" sequences in a crafted zip file. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector requiring user interaction, with a high impact on integrity but no impact on confidentiality or availability. 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
0.13.69CPE matchmatch criteria
cpe:2.3:a:gdraheim:zziplib:0.13.69:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.54%
Probability of exploitation in next 30 days
EPSS Percentile
72.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0154 is in the 83rd percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (9)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 16954-16823Fixed in: 0.13.69-8
microsoftpatch availablevia msrc
Product: cbl2 zziplib 0.13.69-8 on CBL Mariner 2.0Fixed in: 0.13.69-8
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 0.13.69-8
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 0.13.69-8
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: zziplib-0:0.13.68-8.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: zziplib-0:0.13.71-12.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: zziplib-0:0.13.78-2.el10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: zziplib-0:0.13.62-12.el7
View patch

Vendor Advisories (3)

microsoft2021-Dec/CVE-2018-17828

CVE-2018-17828

Dec 14, 2021
microsoft2018-Oct/CVE-2018-17828Moderate

Directory traversal vulnerability in ZZIPlib 0.13.69 allows attackers to overwrite arbitrary files via a .. (dot dot) in a zip file because of the function unzzip_cat in the bins/unzzipcat-mem.c file.

Oct 9, 2018
redhatCVE-2018-17828Moderate

zziplib: directory traversal in unzzip_cat in the bins/unzzipcat-mem.c

Sep 25, 2018

References

github.com / gdraheim/zziplib/issues/62
ExploitPatchThird Party Advisory