CVE-2013-1618

4.0 MEDIUM 2% exploit odds Fix listed

What it is

The TLS implementation in Opera before 12.13 does not properly consider timing side-channel attacks on a MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2013-02-08 19:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:51 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.2% in the next 30 days (EPSS).
Severity: 4.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2013-02-08 19:55 UTC
Last modified: 2026-06-16 23:51 UTC
Exploit probability: 2.2% · EPSS, next 30 days
Weakness: CWE-310
Record status: Modified

Affected

Opera Browser ≤ 12.12
Opera Browser 12.00
Opera Browser 12.01
Opera Browser 12.02
Opera Browser 12.10
Opera Browser 12.11

Attack profile CVSS 2.0 · 4.0

Attack vector: Network
Complexity: High
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: None

Raw vector

AV:N/AC:H/Au:N/C:P/I:P/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2013-1618.md and follow it. Check whether this project is affected by CVE-2013-1618. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record