Lookup for vulnerabilities affecting packages.

Vulnerability_idVCID-g5u9-khw6-4kgn
SummaryAn integer overflow existed in the wolfCrypt CMAC implementation, that could be exploited to forge CMAC tags. The function wc_CmacUpdate used the guard `if (cmac->totalSz != 0)` to skip XOR-chaining on the first block (where digest is all-zeros and the XOR is a no-op). However, totalSz is word32 and wraps to zero after 2^28 block flushes (4 GiB), causing the guard to erroneously discard the live CBC-MAC chain state. Any two messages sharing a common suffix beyond the 4 GiB mark then produce identical CMAC tags, enabling a zero-work prefix-substitution forgery. The fix removes the guard, making the XOR unconditional; the no-op property on the first block is preserved because digest is zero-initialized by wc_InitCmac_ex.
Aliases
0
alias CVE-2026-5477
Fixed_packages
0
url pkg:deb/debian/wolfssl@5.9.1-0.1
purl pkg:deb/debian/wolfssl@5.9.1-0.1
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.1-0.1
1
url pkg:deb/debian/wolfssl@5.9.1-0.1?distro=trixie
purl pkg:deb/debian/wolfssl@5.9.1-0.1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.1-0.1%3Fdistro=trixie
Affected_packages
0
url pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2
purl pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-15fz-hhc7-kyaa
1
vulnerability VCID-1u3q-52yd-1bhe
2
vulnerability VCID-24mg-wn6a-6bew
3
vulnerability VCID-24s5-d6jt-4kfe
4
vulnerability VCID-2ry7-trrg-gfdk
5
vulnerability VCID-3gve-u4f4-bkht
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vulnerability VCID-47nm-nte5-27fm
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vulnerability VCID-4zda-zrq6-hbc8
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vulnerability VCID-4zyq-af27-yqa4
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vulnerability VCID-6n4g-us9a-53g4
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vulnerability VCID-6v8z-cfax-zqbh
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vulnerability VCID-75y2-h9uk-n3a6
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vulnerability VCID-7xbp-qkvv-bqgm
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vulnerability VCID-8735-ectc-j7a3
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vulnerability VCID-9hdy-aqa2-w3bd
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vulnerability VCID-9jb1-k32z-w7gw
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vulnerability VCID-9jpj-dfsf-qkce
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vulnerability VCID-9jw2-3v9v-ruap
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vulnerability VCID-9kev-ferz-5bhr
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vulnerability VCID-9x14-2t7m-1kbm
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vulnerability VCID-bfap-h1d9-33dj
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vulnerability VCID-cum2-vp1j-syfc
22
vulnerability VCID-cv4y-g4un-ckd4
23
vulnerability VCID-cxhw-3w24-dkes
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vulnerability VCID-dpu2-4w42-kygw
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vulnerability VCID-euma-vgqx-sbau
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vulnerability VCID-f4gq-hqcp-dqe2
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vulnerability VCID-f57c-kamk-3bct
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vulnerability VCID-f5kd-yqz2-nkcb
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vulnerability VCID-fmtp-x6y7-83g1
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vulnerability VCID-g5u9-khw6-4kgn
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vulnerability VCID-gcfd-w8je-kqfm
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vulnerability VCID-gdur-h588-vbb6
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vulnerability VCID-gmdj-a1ys-tqc2
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vulnerability VCID-gtdh-mytb-t3fh
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vulnerability VCID-h6na-nxxq-5yg9
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vulnerability VCID-hdbf-118z-2yec
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vulnerability VCID-hk8r-kk4v-1fa7
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vulnerability VCID-jc3b-m4ud-n7fw
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vulnerability VCID-jvnf-vh29-ufdh
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vulnerability VCID-n64w-nq6a-m7bv
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vulnerability VCID-njbj-f91t-b7f4
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vulnerability VCID-srmp-3tvp-9uhv
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vulnerability VCID-su8x-6n42-n3d5
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vulnerability VCID-u24a-2khf-uyba
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vulnerability VCID-u55w-unmd-97cm
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vulnerability VCID-udcq-enxt-wyf1
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vulnerability VCID-ugd8-9xzt-xbdz
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vulnerability VCID-uvht-9bt9-hfbb
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vulnerability VCID-v3m6-zajw-bfhb
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vulnerability VCID-vugd-2jfz-23b5
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vulnerability VCID-x3uy-7crx-2kae
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vulnerability VCID-xfgd-4hs3-vygk
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vulnerability VCID-xuyn-pjpb-g7du
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vulnerability VCID-xxkx-w5pc-5uap
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vulnerability VCID-zhf4-y8v8-gubn
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.6.0%252Bp1-0%252Bdeb11u2
1
url pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2?distro=trixie
purl pkg:deb/debian/wolfssl@4.6.0%2Bp1-0%2Bdeb11u2?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-15fz-hhc7-kyaa
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vulnerability VCID-xxkx-w5pc-5uap
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vulnerability VCID-zhf4-y8v8-gubn
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@4.6.0%252Bp1-0%252Bdeb11u2%3Fdistro=trixie
2
url pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2?distro=trixie
purl pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-15fz-hhc7-kyaa
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vulnerability VCID-zhf4-y8v8-gubn
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.5.4-2%252Bdeb12u2%3Fdistro=trixie
3
url pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2
purl pkg:deb/debian/wolfssl@5.5.4-2%2Bdeb12u2
is_vulnerable true
affected_by_vulnerabilities
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vulnerability VCID-15fz-hhc7-kyaa
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vulnerability VCID-zhf4-y8v8-gubn
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.5.4-2%252Bdeb12u2
4
url pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1?distro=trixie
purl pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
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vulnerability VCID-xxkx-w5pc-5uap
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.7.2-0.1%252Bdeb13u1%3Fdistro=trixie
5
url pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1
purl pkg:deb/debian/wolfssl@5.7.2-0.1%2Bdeb13u1
is_vulnerable true
affected_by_vulnerabilities
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vulnerability VCID-gtdh-mytb-t3fh
25
vulnerability VCID-h6na-nxxq-5yg9
26
vulnerability VCID-hdbf-118z-2yec
27
vulnerability VCID-hk8r-kk4v-1fa7
28
vulnerability VCID-jc3b-m4ud-n7fw
29
vulnerability VCID-jvnf-vh29-ufdh
30
vulnerability VCID-jxf4-y1au-5bhw
31
vulnerability VCID-khur-3ax7-9fhb
32
vulnerability VCID-n64w-nq6a-m7bv
33
vulnerability VCID-n6uz-fe7m-uqhk
34
vulnerability VCID-njbj-f91t-b7f4
35
vulnerability VCID-nqhj-d7uw-43hd
36
vulnerability VCID-srmp-3tvp-9uhv
37
vulnerability VCID-u55w-unmd-97cm
38
vulnerability VCID-udcq-enxt-wyf1
39
vulnerability VCID-ugd8-9xzt-xbdz
40
vulnerability VCID-uvht-9bt9-hfbb
41
vulnerability VCID-v3m6-zajw-bfhb
42
vulnerability VCID-vugd-2jfz-23b5
43
vulnerability VCID-x3uy-7crx-2kae
44
vulnerability VCID-xuyn-pjpb-g7du
45
vulnerability VCID-xxkx-w5pc-5uap
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.7.2-0.1%252Bdeb13u1
6
url pkg:deb/debian/wolfssl@5.9.0-0.2?distro=trixie
purl pkg:deb/debian/wolfssl@5.9.0-0.2?distro=trixie
is_vulnerable true
affected_by_vulnerabilities
0
vulnerability VCID-15fz-hhc7-kyaa
1
vulnerability VCID-24mg-wn6a-6bew
2
vulnerability VCID-3gve-u4f4-bkht
3
vulnerability VCID-4zyq-af27-yqa4
4
vulnerability VCID-75y2-h9uk-n3a6
5
vulnerability VCID-9jb1-k32z-w7gw
6
vulnerability VCID-bfap-h1d9-33dj
7
vulnerability VCID-cv4y-g4un-ckd4
8
vulnerability VCID-f5kd-yqz2-nkcb
9
vulnerability VCID-g5u9-khw6-4kgn
10
vulnerability VCID-gtdh-mytb-t3fh
11
vulnerability VCID-hdbf-118z-2yec
12
vulnerability VCID-jc3b-m4ud-n7fw
13
vulnerability VCID-jvnf-vh29-ufdh
14
vulnerability VCID-n6uz-fe7m-uqhk
15
vulnerability VCID-nqhj-d7uw-43hd
16
vulnerability VCID-srmp-3tvp-9uhv
17
vulnerability VCID-u55w-unmd-97cm
18
vulnerability VCID-udcq-enxt-wyf1
19
vulnerability VCID-ugd8-9xzt-xbdz
20
vulnerability VCID-vugd-2jfz-23b5
21
vulnerability VCID-x3uy-7crx-2kae
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/wolfssl@5.9.0-0.2%3Fdistro=trixie
References
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2026-5477
reference_id
reference_type
scores
0
value 0.00042
scoring_system epss
scoring_elements 0.1292
published_at 2026-04-11T12:55:00Z
1
value 0.00042
scoring_system epss
scoring_elements 0.12885
published_at 2026-04-12T12:55:00Z
2
value 0.00042
scoring_system epss
scoring_elements 0.12839
published_at 2026-04-13T12:55:00Z
3
value 0.00055
scoring_system epss
scoring_elements 0.17377
published_at 2026-04-21T12:55:00Z
4
value 0.00055
scoring_system epss
scoring_elements 0.17283
published_at 2026-04-24T12:55:00Z
5
value 0.00055
scoring_system epss
scoring_elements 0.17335
published_at 2026-04-16T12:55:00Z
6
value 0.00055
scoring_system epss
scoring_elements 0.17343
published_at 2026-04-18T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2026-5477
1
reference_url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5477
reference_id
reference_type
scores
url https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-5477
2
reference_url https://github.com/wolfSSL/wolfssl/pull/10102
reference_id 10102
reference_type
scores
0
value 8.2
scoring_system cvssv4
scoring_elements CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
1
value Track
scoring_system ssvc
scoring_elements SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-10T14:03:53Z/
url https://github.com/wolfSSL/wolfssl/pull/10102
3
reference_url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133835
reference_id 1133835
reference_type
scores
url https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1133835
Weaknesses
0
cwe_id 190
name Integer Overflow or Wraparound
description The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
Exploits
Severity_range_score8.2 - 8.2
Exploitability0.5
Weighted_severity7.4
Risk_score3.7
Resource_urlhttp://public2.vulnerablecode.io/vulnerabilities/VCID-g5u9-khw6-4kgn