How severe is CVE-2012-1109?

CVE-2012-1109 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2012-1109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1109?

CVE-2012-1109 affects Pediapress Mwlib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-1109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2012-1109 published?

CVE-2012-1109 was published on 2019-11-12 and last updated on 2026-06-16.

CVE-2012-1109

CVE-2012-1109 is a high-severity vulnerability in Pediapress Mwlib with a CVSS 3.x base score of 7.5. 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-755.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Pediapress Mwlib
Published: 2019-11-12
Last modified: 2026-06-16

Description

mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions

Frequently asked questions

What is CVE-2012-1109?: mwlib 0.13 through 0.13.4 has a denial of service vulnerability when parsing #iferror magic functions
How severe is CVE-2012-1109?: CVE-2012-1109 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2012-1109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-1109?: CVE-2012-1109 affects Pediapress Mwlib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-1109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-1109 published?: CVE-2012-1109 was published on 2019-11-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:pediapress:mwlib:*:*:*:*:*:*:*:*

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