How severe is CVE-2016-10253?

CVE-2016-10253 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-10253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10253?

CVE-2016-10253 primarily affects Erlang Erlang/otp. In total, 67 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-10253?

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-2016-10253 published?

CVE-2016-10253 was published on 2017-03-18 and last updated on 2026-06-17.

CVE-2016-10253

CVE-2016-10253 is a critical-severity vulnerability in Erlang Erlang/otp with a CVSS 3.x base score of 9.8. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Erlang Erlang/otp
Published: 2017-03-18
Last modified: 2026-06-17

Description

An issue was discovered in Erlang/OTP 18.x. Erlang's generation of compiled regular expressions is vulnerable to a heap overflow. Regular expressions using a malformed extpattern can indirectly specify an offset that is used as an array index. This ordinal permits arbitrary regions within the erts_alloc arena to be both read and written to.

Frequently asked questions

What is CVE-2016-10253?: An issue was discovered in Erlang/OTP 18.x. Erlang's generation of compiled regular expressions is vulnerable to a heap overflow. Regular expressions using a malformed extpattern can indirectly specify an offset that is used as an array index. This ordinal permits arbitrary regions within the erts_alloc arena to be both read and written to.
How severe is CVE-2016-10253?: CVE-2016-10253 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-10253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10253?: CVE-2016-10253 primarily affects Erlang Erlang/otp. In total, 67 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-10253?: 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-2016-10253 published?: CVE-2016-10253 was published on 2017-03-18 and last updated on 2026-06-17.

References

Affected products (67)

cpe:2.3:a:erlang:erlang\/otp:18.0:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.0.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.0.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.1.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:18.3.4.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0:rc1:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0:rc2:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.2:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.3:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.5:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.6:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.0.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.1:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.1.1:*:*:*:*:*:*:*

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