How severe is CVE-2010-1349?

CVE-2010-1349 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2010-1349 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1349?

CVE-2010-1349 primarily affects Opera Opera Browser. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-1349?

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

When was CVE-2010-1349 published?

CVE-2010-1349 was published on 2010-04-12 and last updated on 2026-06-16.

CVE-2010-1349

CVE-2010-1349 is a critical-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Opera Opera Browser
Published: 2010-04-12
Last modified: 2026-06-16

Description

Integer overflow in Opera 10.10 through 10.50 allows remote attackers to execute arbitrary code via a large Content-Length value, which triggers a heap overflow.

Frequently asked questions

What is CVE-2010-1349?: Integer overflow in Opera 10.10 through 10.50 allows remote attackers to execute arbitrary code via a large Content-Length value, which triggers a heap overflow.
How severe is CVE-2010-1349?: CVE-2010-1349 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2010-1349 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1349?: CVE-2010-1349 primarily affects Opera Opera Browser. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-1349?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2010-1349 published?: CVE-2010-1349 was published on 2010-04-12 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:opera:opera_browser:10.10:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:10.50:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:10.50:beta_1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:10.50:beta_2:*:*:*:*:*:*

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