CVE-2011-1947

mediumpriority · track · 21EPSS 0.026 · 85 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.55% (85th) EPSS

CVSS 5 · medium

Is it mine?

39 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.3mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (39)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
fetchmail fetchmail= 5.9.10nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 5.9.11nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 5.9.13nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 5.9.9nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.0.0nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.1.0nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.1.3nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.0nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.1nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.2nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.3nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.4nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.5nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.5.1nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.5.2nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.5.4nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.6nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.2.9nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*
fetchmail fetchmail= 6.3.0nvdUScpe:2.3:a:fetchmail:fetchmail:*:*:*:*:*:*:*:*

showing 20 of 39

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2011-06-02modified 2026-06-16

related (3,726)

Related entries.

ID	severity	EPSS	exploitable	published
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CVE-2018-0179US	medium5.9OT critical	4.93% (92nd)	KEV	2018-03-28
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CVE-2018-0161US	medium6.3OT critical	4.12% (91st)	KEV	2018-03-28
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated,…
CVE-2018-0156US	high7.5OT critical	9.36% (95th)	KEV	2018-03-28
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected devi…
CVE-2018-0154US	high7.5OT critical	7.07% (94th)	KEV	2018-03-28
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+3721 more

references (36)

External citations — patches, advisories, analysis.

scry

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