How severe is CVE-2013-1649?

CVE-2013-1649 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2013-1649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1649?

CVE-2013-1649 primarily affects Open-xchange Open-xchange Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-1649 published?

CVE-2013-1649 was published on 2013-09-05 and last updated on 2026-06-16.

CVE-2013-1649

CVE-2013-1649 is a medium-severity vulnerability in Open-xchange Open-xchange Server with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Open-xchange Open-xchange Server
Published: 2013-09-05
Last modified: 2026-06-16

Description

Open-Xchange Server before 6.20.7 rev14, 6.22.0 before rev13, and 6.22.1 before rev14 uses the crypt and SHA-1 algorithms for password hashing, which makes it easier for context-dependent attackers to obtain cleartext passwords via a brute-force attack.

Frequently asked questions

What is CVE-2013-1649?: Open-Xchange Server before 6.20.7 rev14, 6.22.0 before rev13, and 6.22.1 before rev14 uses the crypt and SHA-1 algorithms for password hashing, which makes it easier for context-dependent attackers to obtain cleartext passwords via a brute-force attack.
How severe is CVE-2013-1649?: CVE-2013-1649 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2013-1649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-1649?: CVE-2013-1649 primarily affects Open-xchange Open-xchange Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-1649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-1649 published?: CVE-2013-1649 was published on 2013-09-05 and last updated on 2026-06-16.

References

http://archives.neohapsis.com/archives/bugtraq/2013-03/0075.html

Affected products (3)

cpe:2.3:a:open-xchange:open-xchange_server:6.20.7:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_server:6.22.0:*:*:*:*:*:*:*
cpe:2.3:a:open-xchange:open-xchange_server:6.22.1:*:*:*:*:*:*:*

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