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CVE-2009-1647

35
FAUCET Score

CVE-2009-1647 describes a heap-based buffer overflow in Ultrafunk Popcorn version 1.87, specifically within the popcorn.exe component. This vulnerability can be triggered by a remote POP3 server sending an overly long string in a +OK response, leading to a denial of service through an application crash. With a CVSS score of 9.3, it is considered critical due to its network-based attack vector, medium attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a proof-of-concept exploit exists on ExploitDB, though there is no evidence of active exploitation or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.87CPE matchmatch criteria
cpe:2.3:a:ultrafunk:popcorn:1.87:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.74%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-8526 · Apr 23, 2009
This CVE's current EPSS score of 0.0274 is in the 42nd percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exploit-db.com / exploits/8526
securityfocus.com / bid/34699
Exploit
vupen.com / english/advisories/2009/1170
Vendor Advisory