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CVE-2009-1255

16
FAUCET Score

CVE-2009-1255 describes an information disclosure vulnerability in Memcached versions prior to 1.2.8 and MemcacheDB 1.2.0. Attackers can retrieve sensitive system information, specifically the contents of /proc/self/maps and memory-allocation statistics, by sending specific commands to the daemon's TCP port. This allows remote attackers to bypass Address Space Layout Randomization (ASLR) protections. The vulnerability has a CVSS score of 5.0 (Medium), indicating a network-based attack with low complexity and no authentication required, leading to partial confidentiality impact. There is no impact on integrity or availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. It is not listed in the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.0CPE matchmatch criteria
cpe:2.3:a:memcachedb:memcached:*:*:*:*:*:*:*:*
0.0.1CPE matchmatch criteria
cpe:2.3:a:memcachedb:memcached:0.0.1:*:*:*:*:*:*:*
0.0.2CPE matchmatch criteria
cpe:2.3:a:memcachedb:memcached:0.0.2:*:*:*:*:*:*:*
0.0.3CPE matchmatch criteria
cpe:2.3:a:memcachedb:memcached:0.0.3:*:*:*:*:*:*:*
0.0.4CPE matchmatch criteria
cpe:2.3:a:memcachedb:memcached:0.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 71st percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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-2009-1255Important

memcached: multiple vulnerabilities

Apr 28, 2009

References

archives.neohapsis.com / archives/fulldisclosure/2009-04/0282.html
code.google.com / p/memcachedb/source/browse/trunk/ChangeLog
code.google.com / p/memcachedb/source/detail
code.google.com / p/memcachedb/source/diff
ExploitPatch
groups.google.com / group/memcached/browse_thread/thread/ff96a9b88fb5d40e
osvdb.org / 54127
secunia.com / advisories/34915
Vendor Advisory
secunia.com / advisories/34932
Vendor Advisory
secunia.com / advisories/35175
exchange.xforce.ibmcloud.com / vulnerabilities/50221
redhat.com / archives/fedora-package-announce/2009-May/msg00851.html
redhat.com / archives/fedora-package-announce/2009-May/msg01256.html
mandriva.com / security/advisories
positronsecurity.com / advisories/2009-001.html
Exploit
securityfocus.com / archive/1/503064/100/0/threaded
securityfocus.com / bid/34756
securitytracker.com / id
vupen.com / english/advisories/2009/1196
Vendor Advisory
vupen.com / english/advisories/2009/1197
Vendor Advisory