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Fencer Intel
high 7.5

CVE-2015-1783 json

The prefix variable in the get_or_define_ns function in Lasso before commit 6d854cef4211cdcdbc7446c978f23ab859847cdd allows remote attacker…

published 2017-08-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2015-1910

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

The prefix variable in the get_or_define_ns function in Lasso before commit 6d854cef4211cdcdbc7446c978f23ab859847cdd allows remote attackers to cause a denial of service (uninitialized memory access and application crash) via unspecified vectors.

Patch / fix

  • lasso Debian 14, Debian 13, Debian 12 2.4.1-1

debian advisories DEBIAN-CVE-2015-1783

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-1783 updated cvss 3.1

lasso: use of uninitialized value leading to a crash

  • Red Hat Enterprise Linux 6 lasso, lasso-python
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 lasso, lasso-python
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.45% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

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

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.