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CVE-2017-17517

27
FAUCET Score

CVE-2017-17517 is a critical vulnerability affecting Sylpheed through version 3.6, specifically within the libsylph/utils.c component. It allows remote attackers to perform argument-injection attacks by exploiting the lack of validation for strings before launching external programs specified by the BROWSER environment variable, using a specially crafted URL. With a CVSS score of 8.8 (High), this vulnerability presents a significant risk, as it is easily exploitable over the network with low attack complexity and user interaction, potentially leading to high impacts on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB, and it has received negligible community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.6CPE matchmatch criteria
cpe:2.3:a:sylpheed_project:sylpheed:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 64th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

security-tracker.debian.org / tracker/CVE-2017-17517
Issue TrackingThird Party Advisory