What is CVE-2014-3488?

CVE-2014-3488 is a vulnerability in Netty, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-07-31.

Is CVE-2014-3488 known to be exploited?

7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Netty

CVE-2014-3488

The SslHandler in Netty before 3.9.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted SSLv2Hello message.

Vulnerability class: Buffer Overflow

Published 2014-07-31 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.042 (90.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000

Affected products

Netty — versions 3.6.0, 3.6.1, 3.6.2

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

netty.io/news/2014/06/11/3-9-2-Final.html (Vendor Advisory)
github.com/netty/netty/issues/2562 (Exploit, Patch)
secunia.com/advisories/59196 (third-party-advisory)
github.com/netty/netty/commit/2fa9400a59d0563a66908aba55c41e7285a04994
lists.debian.org/debian-lts-announce/2020/02/msg00018.html (mailing-list)

Frequently asked questions

What is CVE-2014-3488?: CVE-2014-3488 is a vulnerability in Netty, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2014-07-31.
Is CVE-2014-3488 known to be exploited?: 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.